URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Submission: On July 03 via api from US — Scanned from DE

Summary

This website contacted 6 IPs in 3 countries across 5 domains to perform 18 HTTP transactions. The main IP is 35.185.199.199, located in The Dalles, United States and belongs to GOOGLE-CLOUD-PLATFORM, US. The main domain is wyh.life.
TLS certificate: Issued by R3 on June 9th 2023. Valid for: 3 months.
This is the only time wyh.life was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
7 35.185.199.199 396982 (GOOGLE-CL...)
4 1.62.64.92 4837 (CHINA169-...)
4 2a06:98c1:312... 13335 (CLOUDFLAR...)
2 2a00:1450:400... 15169 (GOOGLE)
1 192.30.255.117 36459 (GITHUB)
18 6
Apex Domain
Subdomains
Transfer
7 wyh.life
wyh.life
105 KB
4 utteranc.es
utteranc.es — Cisco Umbrella Rank: 226765
21 KB
4 bootcdn.net
cdn.bootcdn.net — Cisco Umbrella Rank: 89986
86 KB
2 google-analytics.com
ssl.google-analytics.com — Cisco Umbrella Rank: 483
17 KB
1 github.com
api.github.com — Cisco Umbrella Rank: 4493
1 KB
18 5
Domain Requested by
7 wyh.life wyh.life
cdn.bootcdn.net
4 utteranc.es wyh.life
utteranc.es
4 cdn.bootcdn.net wyh.life
cdn.bootcdn.net
2 ssl.google-analytics.com wyh.life
1 api.github.com utteranc.es
18 5

This site contains links to these domains. Also see Links.

Domain
github.com
jekyllrb.com
streamlit.app
python.langchain.com
arxiv.org
www.netlify.com
Subject Issuer Validity Valid
*.wyh.life
R3
2023-06-09 -
2023-09-07
3 months crt.sh
cdn.bootcdn.net
R3
2023-05-31 -
2023-08-29
3 months crt.sh
utteranc.es
E1
2023-05-10 -
2023-08-08
3 months crt.sh
*.google-analytics.com
GTS CA 1C3
2023-06-19 -
2023-09-11
3 months crt.sh
*.github.com
DigiCert TLS Hybrid ECC SHA384 2020 CA1
2023-02-16 -
2024-03-15
a year crt.sh

This page contains 2 frames:

Primary Page: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Frame ID: 40565F1A1EAB707CD45B9A00CC4D873F
Requests: 14 HTTP requests in this frame

Frame: https://utteranc.es/utterances.html?src=https%3A%2F%2Futteranc.es%2Fclient.js&repo=yaohui-wyh%2Fyaohui-wyh&issue-term=pathname&theme=github-light&crossorigin=anonymous&async=&url=https%3A%2F%2Fwyh.life%2Farticle%2F2023%2F07%2F02%2Fllm-app-development%3Futm_source%3Dsubstack&origin=https%3A%2F%2Fwyh.life&pathname=article%2F2023%2F07%2F02%2Fllm-app-development&title=A+Hands-on+Journey+to+a+working+LangChain+LLM+Application+%7C+2023-07-02&description=This+post+is+about+the+author%E2%80%99s+experience+building+an+LLM+application+%28BlogGPT%29+using+the+LangChain+framework.&og%3Atitle=A+Hands-on+Journey+to+a+working+LangChain+LLM+Application&session=
Frame ID: 525E43CA75213D7092D7CE7BD61BDE70
Requests: 5 HTTP requests in this frame

Screenshot

Page Title

A Hands-on Journey to a working LangChain LLM Application | 2023-07-02

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js

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

Overall confidence: 100%
Detected patterns
  • /([\d.]+)/jquery(?:\.min)?\.js
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

18
Requests

100 %
HTTPS

40 %
IPv6

5
Domains

5
Subdomains

6
IPs

3
Countries

231 kB
Transfer

534 kB
Size

5
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

18 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request llm-app-development
wyh.life/article/2023/07/02/
26 KB
7 KB
Document
General
Full URL
https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
35.185.199.199 The Dalles, United States, ASN396982 (GOOGLE-CLOUD-PLATFORM, US),
Reverse DNS
199.199.185.35.bc.googleusercontent.com
Software
Netlify /
Resource Hash
6b9b7f79eb58e359c20128d77afed6ec6552479ecd9386c789347e5aaed18211
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

accept-ranges
bytes
age
0
cache-control
public,s-max-age=7200
content-encoding
br
content-type
text/html; charset=UTF-8
date
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etag
"a9bd8641a65e543c8ef01b7fba153981-ssl-df"
server
Netlify
strict-transport-security
max-age=31536000
vary
Accept-Encoding
x-nf-request-id
01H4DP4VP86X0ZDGJDRD2BWK89
bootstrap.min.css
cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.3.6/css/
118 KB
24 KB
Stylesheet
General
Full URL
https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.3.6/css/bootstrap.min.css
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
1.62.64.92 Harbin, China, ASN4837 (CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN),
Reverse DNS
Software
nginx / PHP/7.4.19
Resource Hash
eece6e0c65b7007ab0eb1b4998d36dafe381449525824349128efc3f86f4c91c
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://wyh.life/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36

Response headers

date
Mon, 03 Jul 2023 10:48:33 GMT
content-encoding
gzip
x-cache-lookup
Cache Miss, Cache Miss
strict-transport-security
max-age=63072000;
age
0
x-powered-by
PHP/7.4.19
server
nginx
vary
Accept-Encoding
access-control-max-age
1800
content-type
text/css;charset=UTF-8
access-control-allow-origin
*
access-control-allow-methods
GET, POST, PATCH, PUT, DELETE, OPTIONS
cache-control
max-age=31536000
access-control-allow-credentials
true
x-nws-log-uuid
3841030571564737641
access-control-allow-headers
Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-CSRF-TOKEN, X-Requested-With,token
expires
Mon, 03 Jul 2023 10:52:35 GMT
style.css
wyh.life/assets/themes/bootstrap-3/dist/
11 KB
3 KB
Stylesheet
General
Full URL
https://wyh.life/assets/themes/bootstrap-3/dist/style.css?body=1
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
35.185.199.199 The Dalles, United States, ASN396982 (GOOGLE-CLOUD-PLATFORM, US),
Reverse DNS
199.199.185.35.bc.googleusercontent.com
Software
Netlify /
Resource Hash
10dcc5c5be51867b0bd298c5079965d252e0074b0b2ea0cb57bedf0cd60e96ec
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36

Response headers

x-nf-request-id
01H4DP4VY5151GSNWRCRC2KZFN
date
Mon, 03 Jul 2023 10:53:03 GMT
content-encoding
br
strict-transport-security
max-age=31536000
server
Netlify
age
0
etag
"51b6a953ce771fdd1e729d5dad739b80-ssl"
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public,s-max-age=604800
accept-ranges
bytes
content-length
3082
client.js
utteranc.es/
2 KB
2 KB
Script
General
Full URL
https://utteranc.es/client.js
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
f36e0332898e1f23f085fb5da06939f26b2fd57e99c306e9c1f4ad3b17efcf34

Request headers

Referer
https://wyh.life/
Origin
https://wyh.life
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/114.0.5735.198 Safari/537.36

Response headers

x-fastly-request-id
b94c6253fb420d0cf0aeb077858332a1e83da0ee
date
Mon, 03 Jul 2023 10:53:03 GMT
via
1.1 varnish
content-encoding
br
cf-cache-status
MISS
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expires
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x-cache
HIT
x-proxy-cache
MISS
alt-svc
h3=":443"; ma=86400
x-served-by
cache-fra-eddf8230066-FRA
last-modified
Fri, 11 Feb 2022 15:29:47 GMT
server
cloudflare
x-github-request-id
7CE8:3668:364AF5F:3817E2D:647EA3FC
x-timer
S1688381583.291768,VS0,VE1
etag
W/"620680eb-8d2"
vary
Accept-Encoding
report-to
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content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
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cf-ray
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x-cache-hits
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jquery.min.js
cdn.bootcdn.net/ajax/libs/jquery/2.2.1/
84 KB
33 KB
Script
General
Full URL
https://cdn.bootcdn.net/ajax/libs/jquery/2.2.1/jquery.min.js
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
1.62.64.92 Harbin, China, ASN4837 (CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN),
Reverse DNS
Software
nginx / PHP/7.4.19
Resource Hash
82f420005cd31fab6b4ab016a07d623e8f5773de90c526777de5ba91e9be3b4d
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://wyh.life/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36

Response headers

date
Mon, 03 Jul 2023 10:48:33 GMT
content-encoding
gzip
x-cache-lookup
Cache Miss, Cache Miss
strict-transport-security
max-age=63072000;
age
0
x-powered-by
PHP/7.4.19
server
nginx
vary
Accept-Encoding
access-control-max-age
1800
content-type
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access-control-allow-origin
*
access-control-allow-methods
GET, POST, PATCH, PUT, DELETE, OPTIONS
cache-control
max-age=31536000
access-control-allow-credentials
true
x-nws-log-uuid
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access-control-allow-headers
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expires
Mon, 03 Jul 2023 10:48:33 GMT
bootstrap.min.js
cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.3.6/js/
36 KB
12 KB
Script
General
Full URL
https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.3.6/js/bootstrap.min.js
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
1.62.64.92 Harbin, China, ASN4837 (CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN),
Reverse DNS
Software
nginx / PHP/7.4.19
Resource Hash
2979f9a6e32fc42c3e7406339ee9fe76b31d1b52059776a02b4a7fa6a4fd280a
Security Headers
Name Value
Strict-Transport-Security max-age=63072000;

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://wyh.life/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36

Response headers

date
Mon, 03 Jul 2023 10:48:33 GMT
content-encoding
gzip
x-cache-lookup
Cache Miss, Cache Miss
strict-transport-security
max-age=63072000;
age
0
x-powered-by
PHP/7.4.19
server
nginx
vary
Accept-Encoding
access-control-max-age
1800
content-type
text/javascript;charset=UTF-8
access-control-allow-origin
*
access-control-allow-methods
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cache-control
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access-control-allow-credentials
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x-nws-log-uuid
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access-control-allow-headers
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expires
Mon, 03 Jul 2023 10:48:33 GMT
main.js
wyh.life/assets/themes/bootstrap-3/dist/
15 KB
5 KB
Script
General
Full URL
https://wyh.life/assets/themes/bootstrap-3/dist/main.js
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
35.185.199.199 The Dalles, United States, ASN396982 (GOOGLE-CLOUD-PLATFORM, US),
Reverse DNS
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Software
Netlify /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

accept-language
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Referer
https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36

Response headers

x-nf-request-id
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date
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content-encoding
br
strict-transport-security
max-age=31536000
server
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age
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etag
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vary
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content-type
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cache-control
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accept-ranges
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content-length
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18 KB
18 KB
Font
General
Full URL
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Requested by
Host: cdn.bootcdn.net
URL: https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.3.6/css/bootstrap.min.css
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
1.62.64.92 Harbin, China, ASN4837 (CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN),
Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=63072000;

Request headers

Referer
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Origin
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accept-language
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.5735.198 Safari/537.36

Response headers

date
Mon, 03 Jul 2023 10:48:34 GMT
strict-transport-security
max-age=63072000;
x-cache-lookup
Cache Miss, Cache Miss
server
nginx
age
0
x-powered-by
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access-control-max-age
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access-control-allow-methods
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content-type
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access-control-allow-origin
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cache-control
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access-control-allow-headers
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expires
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ga.js
ssl.google-analytics.com/
45 KB
17 KB
Script
General
Full URL
https://ssl.google-analytics.com/ga.js
Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Reverse DNS
Software
Golfe2 /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

accept-language
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Referer
https://wyh.life/
User-Agent
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Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
date
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last-modified
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server
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age
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content-type
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cache-control
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cross-origin-resource-policy
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alt-svc
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content-length
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expires
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utteranc.es/ Frame 525E
481 B
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General
Full URL
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Requested by
Host: wyh.life
URL: https://wyh.life/article/2023/07/02/llm-app-development?utm_source=substack
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2a06:98c1:3120::3 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Request headers

Referer
https://wyh.life/
Upgrade-Insecure-Requests
1
User-Agent
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accept-language
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Response headers

access-control-allow-origin
*
age
487
alt-svc
h3=":443"; ma=86400
cache-control
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cf-cache-status
DYNAMIC
cf-ray
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expires
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last-modified
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nel
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Verdicts & Comments Add Verdict or Comment

17 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.

object| 0 boolean| credentialless object| onbeforetoggle object| onscrollend string| g_categories string| g_category string| g_wideMode function| $ function| jQuery function| SimpleJekyllSearch object| _gaq object| _gat object| gaGlobal boolean| PR_SHOULD_USE_CONTINUATION function| prettyPrintOne function| prettyPrint object| PR

5 Cookies

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Value: 106288389.1055879536.1688381586.1688381586.1688381586.1
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Value: 106288389.1.10.1688381586

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=31536000

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.

api.github.com
cdn.bootcdn.net
ssl.google-analytics.com
utteranc.es
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