URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Submission: On March 21 via manual from KR — Scanned from DE

Summary

This website contacted 3 IPs in 2 countries across 2 domains to perform 51 HTTP transactions. The main IP is 76.76.21.164, located in Walnut, United States and belongs to AMAZON-02, US. The main domain is overreacted.io.
TLS certificate: Issued by R3 on February 24th 2023. Valid for: 3 months.
This is the only time overreacted.io was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
49 76.76.21.164 16509 (AMAZON-02)
2 2a00:1450:400... 15169 (GOOGLE)
51 3
Apex Domain
Subdomains
Transfer
49 overreacted.io
overreacted.io
7 MB
2 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 25
20 KB
51 2
Domain Requested by
49 overreacted.io overreacted.io
2 www.google-analytics.com overreacted.io
www.google-analytics.com
51 2
Subject Issuer Validity Valid
*.overreacted.io
R3
2023-02-24 -
2023-05-25
3 months crt.sh
*.google-analytics.com
GTS CA 1C3
2023-03-02 -
2023-05-25
3 months crt.sh

This page contains 1 frames:

Primary Page: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Frame ID: E652401916C812CD59CFEF23F4AEF2C9
Requests: 54 HTTP requests in this frame

Screenshot

Page Title

useEffect 완벽 가이드 — Overreacted

Detected technologies

Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js

Page Statistics

51
Requests

100 %
HTTPS

50 %
IPv6

2
Domains

2
Subdomains

3
IPs

2
Countries

7408 kB
Transfer

9440 kB
Size

3
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

51 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
overreacted.io/ko/a-complete-guide-to-useeffect/
389 KB
115 KB
Document
General
Full URL
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
a64d8ccfaa26aa2c8d381631b4b5df6b896cf763bdf0eb85e04ac6ca6971b91e
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

access-control-allow-origin
*
age
4453911
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="a-complete-guide-to-useeffect"
content-encoding
br
content-type
text/html; charset=utf-8
date
Tue, 21 Mar 2023 07:44:25 GMT
etag
W/"b4e21f415193dc19473f06c0ebce98f0"
server
Vercel
strict-transport-security
max-age=63072000
x-vercel-cache
HIT
x-vercel-id
fra1:fra1::jhz9h-1679384665674-7fdbd04f5ed7
webpack-runtime-997d79029e8ebfd075f0.js
overreacted.io/
5 KB
2 KB
Script
General
Full URL
https://overreacted.io/webpack-runtime-997d79029e8ebfd075f0.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
508f9b67ad559ad5cdd358db66e9193d83bf8799269fd07ed96650d310748c46
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::jhz9h-1679384665749-b6c62392b7be
age
4721244
etag
W/"b7f2533cd0fbefcb17f505df9b61be6a"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="webpack-runtime-997d79029e8ebfd075f0.js"
framework-eb684e3e828ad13b3940.js
overreacted.io/
126 KB
41 KB
Script
General
Full URL
https://overreacted.io/framework-eb684e3e828ad13b3940.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
6a24c93150e7140e28f8a91e4110676bafc4ec7d5f278b40bd1da70bc6afcd91
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::z2ssh-1679384665749-24a149b5a9e4
age
4723042
etag
W/"177b3b3c0d20bed0a06bdf9d633d3ecb"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="framework-eb684e3e828ad13b3940.js"
app-fa8554a6ec2f828fe8c9.js
overreacted.io/
66 KB
22 KB
Script
General
Full URL
https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
0e8d208c53b724127a61a304b3c54639aa85c122f52295b61195c10b0683eb58
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::kqfnc-1679384665749-747d622a713b
age
4787412
etag
W/"1b2a2d64f818da8ece8251a15a9a3d21"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="app-fa8554a6ec2f828fe8c9.js"
styles-407fe62976dc5310c43e.js
overreacted.io/
117 B
264 B
Script
General
Full URL
https://overreacted.io/styles-407fe62976dc5310c43e.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
cf78e3bcf3150d9c1c3b4be5a3f8874e83dabebadebb9374cb607e2cb260e996
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::7w2pp-1679384665761-c04d0927f560
age
4718731
etag
"6fb71a03e6e04f04a2142d3cd51c5a03"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="styles-407fe62976dc5310c43e.js"
accept-ranges
bytes
content-length
117
commons-4b8af3cd06fb0506c0c5.js
overreacted.io/
62 KB
24 KB
Script
General
Full URL
https://overreacted.io/commons-4b8af3cd06fb0506c0c5.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
ac84d6d46a4a25763161d4f768c0f9bac4aeedf0efc4b9d8c30330ff52ca4fd6
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::j6hfm-1679384665749-6602e270be64
age
4794290
etag
W/"68a52dbd395f417769575b1794eef9f7"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="commons-4b8af3cd06fb0506c0c5.js"
bc9699c34271943da8277b99b074a5b8731a0b8b-67b9dbee34e5849c496a.js
overreacted.io/
8 KB
3 KB
Script
General
Full URL
https://overreacted.io/bc9699c34271943da8277b99b074a5b8731a0b8b-67b9dbee34e5849c496a.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
063c7cb004cfce13577bd3018a56e10bd124fcca6edde23a11871d2c98723fd8
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::zd55p-1679384665749-8f91fb32d1fb
age
4794310
etag
W/"d23fb7ba2da783f28f0f85f1a91b8fdc"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="bc9699c34271943da8277b99b074a5b8731a0b8b-67b9dbee34e5849c496a.js"
component---src-templates-blog-post-js-25a7c0b3f30f7dacd92c.js
overreacted.io/
13 KB
5 KB
Script
General
Full URL
https://overreacted.io/component---src-templates-blog-post-js-25a7c0b3f30f7dacd92c.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
51f144f130e8e40618a366f8b2e88be940729a63238b52a99c7c9790cdc7c8e2
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::sw7lw-1679384665749-88e6cf04f21a
age
52951
etag
W/"e3b7e20f3be672c405a8f72b26b91ec8"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="component---src-templates-blog-post-js-25a7c0b3f30f7dacd92c.js"
page-data.json
overreacted.io/page-data/ko/a-complete-guide-to-useeffect/
274 KB
40 KB
Other
General
Full URL
https://overreacted.io/page-data/ko/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
4b930ce7839d182b10f5a23243ce04e8bec1310671c78cd7d613560da2548917
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::tzhvr-1679384665749-2eedc9c05d89
age
4720430
etag
W/"fa5ad8c3b8bc2b0cf4cde01e943e8d4d"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
336482444.json
overreacted.io/page-data/sq/d/
229 B
392 B
Other
General
Full URL
https://overreacted.io/page-data/sq/d/336482444.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
371d4e6a7a74ac5739bab2f8a8b096871977849d8a107a0f3660afbdefd71b14
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::brn9x-1679384665749-330ae887c3b4
age
24455
etag
"456d83ba9447ba237917e321cb21baa2"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="336482444.json"
accept-ranges
bytes
content-length
229
app-data.json
overreacted.io/page-data/
50 B
186 B
Other
General
Full URL
https://overreacted.io/page-data/app-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
5306599a27035497e0271c10897f052a284722daff566f9860a2fb679ddda2ce
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::27c8m-1679384665753-f62a41565a67
age
4792981
etag
"76fe20c1776b6316b3de98408532e954"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="app-data.json"
accept-ranges
bytes
content-length
50
yoda.jpg
overreacted.io/static/6203a1f1f2c771816a5ba0969baccd12/fce5f/
16 KB
16 KB
Image
General
Full URL
https://overreacted.io/static/6203a1f1f2c771816a5ba0969baccd12/fce5f/yoda.jpg
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e735d3b0429762cfb53fcbc04f38049b25814ba909655718d4e8d76399b49b68
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::jhz9h-1679384665754-df162628d9c6
age
4789962
etag
"e2fee880b024a463e7ae64a2d2fc043b"
x-vercel-cache
HIT
content-type
image/jpeg
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="yoda.jpg"
accept-ranges
bytes
content-length
16357
counter.gif
overreacted.io/46c55d5f1f749462b7a173f1e748e41e/
79 KB
80 KB
Image
General
Full URL
https://overreacted.io/46c55d5f1f749462b7a173f1e748e41e/counter.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
075b7aaf61499361a64eca64d12b3acb098ea689c84a267bd834657764e20980
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::klnlx-1679384665754-5c27bd8d152d
age
4790867
etag
"46c55d5f1f749462b7a173f1e748e41e"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="counter.gif"
accept-ranges
bytes
content-length
81295
timeout_counter.gif
overreacted.io/a5727d333c270e05942f508707265378/
143 KB
143 KB
Image
General
Full URL
https://overreacted.io/a5727d333c270e05942f508707265378/timeout_counter.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
c24b02816990950dd505253ef49bc2eaca7a53d23c85a92d366e1746ccfe5390
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::97jpg-1679384665833-d87703f72349
age
4716348
etag
"a5727d333c270e05942f508707265378"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="timeout_counter.gif"
accept-ranges
bytes
content-length
146086
timeout_counter_class.gif
overreacted.io/264b329edc111a1973003bdf2bcacd65/
208 KB
208 KB
Image
General
Full URL
https://overreacted.io/264b329edc111a1973003bdf2bcacd65/timeout_counter_class.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
d5f08bac48c766e24b442343b9b4d2cad8ac84db5f562fa74cb3fd4d2cb7783b
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::g7bm4-1679384665757-6fa780657a4d
age
4790868
etag
"264b329edc111a1973003bdf2bcacd65"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="timeout_counter_class.gif"
accept-ranges
bytes
content-length
212636
timeout_counter_refs.gif
overreacted.io/78f7948263dd13b023498b23cb99f4fc/
93 KB
93 KB
Image
General
Full URL
https://overreacted.io/78f7948263dd13b023498b23cb99f4fc/timeout_counter_refs.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
444bdf7c55c04b29bd886b257d3a45dd4ed87ebf4e2ee498923a1694c84c0b0a
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::9lvgz-1679384665754-2d8953be5e9b
age
4716348
etag
"78f7948263dd13b023498b23cb99f4fc"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="timeout_counter_refs.gif"
accept-ranges
bytes
content-length
95185
deja_vu.gif
overreacted.io/5fe238cf03a21dfa32af624124fcdcff/
4 MB
4 MB
Image
General
Full URL
https://overreacted.io/5fe238cf03a21dfa32af624124fcdcff/deja_vu.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
11c7a2e76558b2f273b74c0588d4142033806878f04b6bfe587bb55ca4625435
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::brn9x-1679384665761-716ab7c3e442
age
4722998
etag
"5fe238cf03a21dfa32af624124fcdcff"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="deja_vu.gif"
accept-ranges
bytes
content-length
4308284
truncated
/
629 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
785a1ab0b62a6e15ed19003a1fd2d91362ee547e6de5449a96c5775b5266ee50

Request headers

accept-language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

Content-Type
image/jpeg
montserrat-900-l-5751237264c0468be0d48ad1cea75b90.woff2
overreacted.io/static/
12 KB
12 KB
Font
General
Full URL
https://overreacted.io/static/montserrat-900-l-5751237264c0468be0d48ad1cea75b90.woff2
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
67a7343248f4278b70e3039b95021c207ff7426ca337f827ad074783537e60bf
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::g7bm4-1679384665763-7f344a92d137
age
4637506
etag
"5751237264c0468be0d48ad1cea75b90"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="montserrat-900-l-5751237264c0468be0d48ad1cea75b90.woff2"
accept-ranges
bytes
content-length
12160
merriweather-400-l-8796b7875d52e9cb9b280211e8d3f82d.woff2
overreacted.io/static/
12 KB
12 KB
Font
General
Full URL
https://overreacted.io/static/merriweather-400-l-8796b7875d52e9cb9b280211e8d3f82d.woff2
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
3b57e3ae748aa80f58eba0a7e74204b011c2b862670ed2ea5c54d6cf8aeb3613
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::z2ssh-1679384665763-a753257b84bb
age
4719554
etag
"8796b7875d52e9cb9b280211e8d3f82d"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="merriweather-400-l-8796b7875d52e9cb9b280211e8d3f82d.woff2"
accept-ranges
bytes
content-length
11952
merriweather-700-l-e24e02bb044cb07539a3a6bd12348d14.woff2
overreacted.io/static/
12 KB
12 KB
Font
General
Full URL
https://overreacted.io/static/merriweather-700-l-e24e02bb044cb07539a3a6bd12348d14.woff2
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
cfadae37e49d1d97f2aae5461b4f1b3ff30df36ca20e5a1e282d7ded6240d3c8
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::sw7lw-1679384665763-ae1aeb5a3d8c
age
4794309
etag
"e24e02bb044cb07539a3a6bd12348d14"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="merriweather-700-l-e24e02bb044cb07539a3a6bd12348d14.woff2"
accept-ranges
bytes
content-length
11952
merriweather-400-i-l-9a3ea56a5f449980432ace5972181ef6.woff2
overreacted.io/static/
12 KB
12 KB
Font
General
Full URL
https://overreacted.io/static/merriweather-400-i-l-9a3ea56a5f449980432ace5972181ef6.woff2
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
7b5c407e7179eeab2dbd7d53d78485fd0fef8596049651555daca6f747276142
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::27c8m-1679384665763-0613e0d18183
age
4719631
etag
"9a3ea56a5f449980432ace5972181ef6"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="merriweather-400-i-l-9a3ea56a5f449980432ace5972181ef6.woff2"
accept-ranges
bytes
content-length
12412
merriweather-700-i-l-ad085ede31afcc5585ff34869b1cd029.woff2
overreacted.io/static/
12 KB
12 KB
Font
General
Full URL
https://overreacted.io/static/merriweather-700-i-l-ad085ede31afcc5585ff34869b1cd029.woff2
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
08b9bf916b719069609e9ad84d3713cf4b8db8bdc35cf9e66c414317cc095dbc
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::tzhvr-1679384665803-bc7479edbfc1
age
4718246
etag
"ad085ede31afcc5585ff34869b1cd029"
x-vercel-cache
HIT
content-type
font/woff2
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="merriweather-700-i-l-ad085ede31afcc5585ff34869b1cd029.woff2"
accept-ranges
bytes
content-length
12460
deps-compare-correct.gif
overreacted.io/fae247cd068eedbd4b62ba50592d2b3d/
56 KB
56 KB
Image
General
Full URL
https://overreacted.io/fae247cd068eedbd4b62ba50592d2b3d/deps-compare-correct.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
142925d4e794fa8f8dd2ce03af164d27b34ba95bec665b049fd73d52c21839d6
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::692v9-1679384665879-264824197e2d
age
4716348
etag
"fae247cd068eedbd4b62ba50592d2b3d"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="deps-compare-correct.gif"
accept-ranges
bytes
content-length
57287
deps-compare-wrong.gif
overreacted.io/25f75db3f9f57ffe1426912093577445/
36 KB
36 KB
Image
General
Full URL
https://overreacted.io/25f75db3f9f57ffe1426912093577445/deps-compare-wrong.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
dd494d05bdf3232e9b50cc17a827fba2d7ea55e42bf244fa169d00c4de5db631
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::tzhvr-1679384665879-bb9f7f65ba0b
age
4720432
etag
"25f75db3f9f57ffe1426912093577445"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="deps-compare-wrong.gif"
accept-ranges
bytes
content-length
36463
interval-wrong.gif
overreacted.io/29e53bd0c9b7d2ac70d3cd924886b030/
62 KB
62 KB
Image
General
Full URL
https://overreacted.io/29e53bd0c9b7d2ac70d3cd924886b030/interval-wrong.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
2adb6e169196f2b01c242b5d7efb2d9f33299814df82ef54041e2ff8bffb7731
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::f2vmk-1679384665879-65f2440df0f3
age
4722999
etag
"29e53bd0c9b7d2ac70d3cd924886b030"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="interval-wrong.gif"
accept-ranges
bytes
content-length
63041
interval-rightish.gif
overreacted.io/5734271ddfa94d2d65ac6160515e0069/
81 KB
81 KB
Image
General
Full URL
https://overreacted.io/5734271ddfa94d2d65ac6160515e0069/interval-rightish.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
43269041d4aa8b623662b682685e9698c32c4d4d56f78564e3f5166b546247d7
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::rlmh7-1679384665880-447a75a82210
age
4790867
etag
"5734271ddfa94d2d65ac6160515e0069"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="interval-rightish.gif"
accept-ranges
bytes
content-length
82764
interval-right.gif
overreacted.io/f128ad20c28317ed27a3cb68197fc906/
55 KB
55 KB
Image
General
Full URL
https://overreacted.io/f128ad20c28317ed27a3cb68197fc906/interval-right.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
0f1cd15eda59b5457235a79a14bb87fc89c09af9ed93a9c3bb73d03c2a93702b
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::r68d6-1679384665880-7b2cce5721fe
age
4720432
etag
"f128ad20c28317ed27a3cb68197fc906"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="interval-right.gif"
accept-ranges
bytes
content-length
56204
exhaustive-deps.gif
overreacted.io/04a90dcbacb01105d634964880ebed19/
1 MB
1 MB
Image
General
Full URL
https://overreacted.io/04a90dcbacb01105d634964880ebed19/exhaustive-deps.gif
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
a507d40a1fd243d61ea7721c090d356a1ced385d0ae066d964004603dc2e35ce
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::dwfv5-1679384665880-52be0f9c1f52
age
4716337
etag
"04a90dcbacb01105d634964880ebed19"
x-vercel-cache
HIT
content-type
image/gif
access-control-allow-origin
*
cache-control
public, max-age=0, must-revalidate
content-disposition
inline; filename="exhaustive-deps.gif"
accept-ranges
bytes
content-length
1503022
profile-pic-c715447ce38098828758e525a1128b87.jpg
overreacted.io/static/
45 KB
45 KB
Image
General
Full URL
https://overreacted.io/static/profile-pic-c715447ce38098828758e525a1128b87.jpg
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
ec9cc1b2c159cfecb32f8af5082b2be7f2bc68673f5d987e3bd22292efc04523
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:25 GMT
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::zd55p-1679384665880-ea846aece4d8
age
4723041
etag
"c715447ce38098828758e525a1128b87"
x-vercel-cache
HIT
content-type
image/jpeg
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="profile-pic-c715447ce38098828758e525a1128b87.jpg"
accept-ranges
bytes
content-length
46289
analytics.js
www.google-analytics.com/
49 KB
20 KB
Script
General
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/ko/a-complete-guide-to-useeffect/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:830::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
5971b095cff574a66d35ada016d4c077c86e2dea62e9c0f14cf7c94b258619de
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
date
Tue, 21 Mar 2023 07:19:33 GMT
last-modified
Tue, 10 Jan 2023 21:29:14 GMT
server
Golfe2
age
1492
vary
Accept-Encoding
content-type
text/javascript
cache-control
public, max-age=7200
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
20085
expires
Tue, 21 Mar 2023 09:19:33 GMT
truncated
/
2 KB
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
89ff5b14ea23fcee5720a39fb67475a245852f13fcc84080367f37bade94c7ad

Request headers

accept-language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

Content-Type
image/png
truncated
/
2 KB
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
fe19fcd28acd6bc00f5532c68da1cfa12489cd9dc66c304a6708552bbebb0b1e

Request headers

accept-language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

Content-Type
image/png
page-data.json
overreacted.io/page-data/a-complete-guide-to-useeffect/
0
33 KB
Other
General
Full URL
https://overreacted.io/page-data/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::89w2g-1679384666190-20a1c64142e1
age
4716348
etag
W/"71433d0e540405199bb459f0975c07d5"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/tr/a-complete-guide-to-useeffect/
0
36 KB
Other
General
Full URL
https://overreacted.io/page-data/tr/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::sw7lw-1679384666190-7534a20a7e2a
age
4790869
etag
W/"72d307449d0de73e116c99ad03301472"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/ja/a-complete-guide-to-useeffect/
0
37 KB
Other
General
Full URL
https://overreacted.io/page-data/ja/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::brn9x-1679384666190-7e7b1061bbce
age
4716291
etag
W/"7874b77904da64c62d4debbc0e7f1885"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/pt-br/a-complete-guide-to-useeffect/
0
35 KB
Other
General
Full URL
https://overreacted.io/page-data/pt-br/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::rlmh7-1679384666191-caf86c08fa86
age
4716291
etag
W/"6f1b10b4f3d772c548d84828dc585e75"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/index/
0
3 KB
Other
General
Full URL
https://overreacted.io/page-data/index/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::r68d6-1679384666191-642d9300917a
age
4718009
etag
W/"37db4e5377bbdd289b7acc41dacffac6"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/zh-hant/a-complete-guide-to-useeffect/
0
37 KB
Other
General
Full URL
https://overreacted.io/page-data/zh-hant/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::f2vmk-1679384666191-129f018dae6b
age
4790364
etag
W/"05348a7a2281acee0839c41989c0e6ef"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/ko/
0
2 KB
Other
General
Full URL
https://overreacted.io/page-data/ko/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::tzhvr-1679384666192-285926e7ee1d
age
1363928
etag
W/"a7669ad297ccfc716343bfc9021113a1"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/zh-hans/a-complete-guide-to-useeffect/
0
37 KB
Other
General
Full URL
https://overreacted.io/page-data/zh-hans/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::zd55p-1679384666193-da85473f146d
age
4786484
etag
W/"035f2372fc0e51b906329547a66b1fee"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/es/a-complete-guide-to-useeffect/
0
36 KB
Other
General
Full URL
https://overreacted.io/page-data/es/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
Origin
https://overreacted.io
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::692v9-1679384666193-7335e165d28a
age
4716291
etag
W/"6ea0d383525cfbc78a77f35213aabd50"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/index/
8 KB
3 KB
XHR
General
Full URL
https://overreacted.io/page-data/index/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
2c7494db660e0ae65bc60bc3fe3214cba63436eed405adb2bc0daeb2559f33cf
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::89w2g-1679384666212-cd71ad31efab
age
4718009
etag
W/"37db4e5377bbdd289b7acc41dacffac6"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/ko/
4 KB
2 KB
XHR
General
Full URL
https://overreacted.io/page-data/ko/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
0c065339f253ea4bd1a6fe5f69bea62f9eda9df67496ea2d622e4b03b3a041e3
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::pxd8q-1679384666214-57994194f0a2
age
1363928
etag
W/"a7669ad297ccfc716343bfc9021113a1"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/ja/a-complete-guide-to-useeffect/
274 KB
37 KB
XHR
General
Full URL
https://overreacted.io/page-data/ja/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
b9e4c0779a6f0418f953699c70594f0edb44c37bcbab6d9ee2326af75a966744
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::tzhvr-1679384666213-f782978d9f1c
age
4716291
etag
W/"7874b77904da64c62d4debbc0e7f1885"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/pt-br/a-complete-guide-to-useeffect/
262 KB
35 KB
XHR
General
Full URL
https://overreacted.io/page-data/pt-br/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
adc31f8ddf8289e8f76a236e4a89e98e0bb6dca5a0e001d0cbb0b61019c80f94
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::692v9-1679384666213-680da8fa8884
age
4716291
etag
W/"6f1b10b4f3d772c548d84828dc585e75"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/zh-hant/a-complete-guide-to-useeffect/
256 KB
37 KB
XHR
General
Full URL
https://overreacted.io/page-data/zh-hant/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
bfe67762c523023b7f6d11b8df96cc00ac405140921fd7fbe4762cb21307a09f
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::zd55p-1679384666213-b647bede0c1d
age
4790364
etag
W/"05348a7a2281acee0839c41989c0e6ef"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/tr/a-complete-guide-to-useeffect/
262 KB
36 KB
XHR
General
Full URL
https://overreacted.io/page-data/tr/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
519442618da1d8f2496161385101e180b298b8dcc8b61b2bcac301894fb6b6af
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::sw7lw-1679384666215-e8a41fbc8352
age
4790869
etag
W/"72d307449d0de73e116c99ad03301472"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/zh-hans/a-complete-guide-to-useeffect/
254 KB
37 KB
XHR
General
Full URL
https://overreacted.io/page-data/zh-hans/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
25bcc9874f5250f613948696c0b5d8518ea4c33d108314fa1568988f46002584
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::r68d6-1679384666214-970f5286afbb
age
4786484
etag
W/"035f2372fc0e51b906329547a66b1fee"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/es/a-complete-guide-to-useeffect/
262 KB
36 KB
XHR
General
Full URL
https://overreacted.io/page-data/es/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
337dd16312596c0977359d9a471a3c0a8fe70fc07df306049500a81df3927c9a
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::f2vmk-1679384666214-0b897771ad19
age
4716291
etag
W/"6ea0d383525cfbc78a77f35213aabd50"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
page-data.json
overreacted.io/page-data/a-complete-guide-to-useeffect/
255 KB
33 KB
XHR
General
Full URL
https://overreacted.io/page-data/a-complete-guide-to-useeffect/page-data.json
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e5fe9bc3dd650ab9c44d65bef7628b804b3982f49ae4940cbc51e788c20e8d51
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::rlmh7-1679384666214-4789c4e41797
age
4716348
etag
W/"71433d0e540405199bb459f0975c07d5"
x-vercel-cache
HIT
content-type
application/json; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="page-data.json"
collect
www.google-analytics.com/j/
3 B
207 B
XHR
General
Full URL
https://www.google-analytics.com/j/collect?v=1&_v=j99&a=1205146976&t=pageview&_s=1&dl=https%3A%2F%2Foverreacted.io%2Fko%2Fa-complete-guide-to-useeffect%2F&dp=%2Fko%2Fa-complete-guide-to-useeffect%2F&ul=en-us&de=UTF-8&dt=useEffect%20%EC%99%84%EB%B2%BD%20%EA%B0%80%EC%9D%B4%EB%93%9C%20%E2%80%94%20Overreacted&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=aEBAAEABAAAAACAAI~&jid=642390501&gjid=532623356&cid=1853947171.1679384666&tid=UA-130227707-1&_gid=421840861.1679384666&_r=1&_slc=1&z=1807938640
Requested by
Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:830::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
1cffc2b3146584685cd72751d7f28aa030ab9ae2f1bc78f2c27909f8d8287b26
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://overreacted.io/
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
Tue, 21 Mar 2023 07:44:26 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://overreacted.io
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length
3
expires
Fri, 01 Jan 1990 00:00:00 GMT
component---src-templates-blog-index-js-23a09a83358d4a7d3a13.js
overreacted.io/
0
2 KB
Other
General
Full URL
https://overreacted.io/component---src-templates-blog-index-js-23a09a83358d4a7d3a13.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::r68d6-1679384666227-5e003808112b
age
4721245
etag
W/"4af9624abacc8fad3e5bbb1d88048181"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="component---src-templates-blog-index-js-23a09a83358d4a7d3a13.js"
component---src-templates-blog-post-js-25a7c0b3f30f7dacd92c.js
overreacted.io/
0
5 KB
Other
General
Full URL
https://overreacted.io/component---src-templates-blog-post-js-25a7c0b3f30f7dacd92c.js
Requested by
Host: overreacted.io
URL: https://overreacted.io/app-fa8554a6ec2f828fe8c9.js
Protocol
H2
Security
TLS 1.3, , CHACHA20_POLY1305
Server
76.76.21.164 Walnut, United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
Vercel /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
Security Headers
Name Value
Strict-Transport-Security max-age=63072000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://overreacted.io/ko/a-complete-guide-to-useeffect/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.5563.64 Safari/537.36

Response headers

date
Tue, 21 Mar 2023 07:44:26 GMT
content-encoding
br
strict-transport-security
max-age=63072000
server
Vercel
x-vercel-id
fra1:fra1::r68d6-1679384666236-12be571228d3
age
52952
etag
W/"e3b7e20f3be672c405a8f72b26b91ec8"
x-vercel-cache
HIT
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
public,max-age=31536000,immutable
content-disposition
inline; filename="component---src-templates-blog-post-js-25a7c0b3f30f7dacd92c.js"

Verdicts & Comments Add Verdict or Comment

20 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

boolean| credentialless function| __onThemeChange function| __setPreferredTheme string| __theme string| GoogleAnalyticsObject function| ga string| pagePath object| ___chunkMapping object| webpackJsonp object| asyncRequires object| ___emitter object| ___loader function| ___push function| ___replace function| ___navigate object| google_tag_data object| gaplugins object| gaGlobal object| gaData string| ___webpackCompilationHash

3 Cookies

Domain/Path Name / Value
.overreacted.io/ Name: _ga
Value: GA1.2.1853947171.1679384666
.overreacted.io/ Name: _gid
Value: GA1.2.421840861.1679384666
.overreacted.io/ Name: _gat
Value: 1

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Strict-Transport-Security max-age=63072000

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

overreacted.io
www.google-analytics.com
2a00:1450:4001:830::200e
76.76.21.164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