www.rfc-editor.org
104.18.20.81  Public Scan Open in urlscan Pro

Internal
urlscan.io (IP) urlscan.io (Domain)
Effective Hostname
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Submitted URL
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Effective IP
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URL:
https://www.rfc-editor.org/rfc/rfc9110 9yr old
Submission Tags: takedown-workflow n8n Search All
Submission: On March 28 via api (March 28th 2026, 9:23:43 pm UTC) from CA — Scanned from IL
Summary HTTP 12 Redirects Links 27  Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 4 IPs in 2 countries across 3 domains to perform 12 HTTP transactions. The main IP is 104.18.20.81, located in Ascension Island and belongs to CLOUDFLARENET - Cloudflare, Inc., US. The main domain is www.rfc-editor.org. The Cisco Umbrella rank of the primary domain is 140091. 9yr old
TLS certificate: Issued by WE1 on February 15th 2026. Valid for: 3mo.
This is the only time www.rfc-editor.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
4 104.18.20.81 104.18.20.81 13335 (CLOUDFLAR...) (CLOUDFLARENET - Cloudflare)
3 142.251.208.10 142.251.208.10 15169 (GOOGLE) (GOOGLE - Google LLC)
4 172.217.16.163 172.217.16.163 15169 (GOOGLE) (GOOGLE - Google LLC)
12 4
Apex Domain
Subdomains		 Transfer
4 gstatic.com
fonts.gstatic.com — Cisco Umbrella Rank: 25 10yr old
87 KB
4 rfc-editor.org
www.rfc-editor.org — Cisco Umbrella Rank: 140091 9yr old
201 KB
3 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 42 10yr old
3 KB
12 3
Domain Requested by
4 fonts.gstatic.com fonts.googleapis.com
4 www.rfc-editor.org www.rfc-editor.org
3 fonts.googleapis.com www.rfc-editor.org
12 3
Subject Issuer Validity Valid
rfc-editor.org
WE1		 2026-02-15 -
2026-05-16		 3mo crt.sh
upload.video.google.com
WE2		 2026-03-09 -
2026-06-01		 3mo crt.sh
*.gstatic.com
WE2		 2026-03-09 -
2026-06-01		 3mo crt.sh

This page contains 1 frames:

Primary Page: https://www.rfc-editor.org/rfc/rfc9110
Frame ID: 18E594FB09AA8F4A71CAA7FEC357DA9F
Requests: 12 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

RFC 9110: HTTP Semantics

Detected technologies

(Security)
Overall confidence: 100%
Detected patterns

Page Statistics

12
Requests

92 %
HTTPS

0 %
IPv6

3
Domains

3
Subdomains

4
IPs

2
Countries

290 kB
Transfer

1260 kB
Size

1
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

12 HTTP transactions
0 data transactions

Method
Protocol		 Status Resource
Path		 Size
x-fer		 Time
Latency		 Type
MIME-Type		 IP
Location
GET
H3 		200
 Primary Request rfc9110 Show response
www.rfc-editor.org/rfc/ 		1 MB
198 KB 		365ms
265ms 		Document
text/html		 104.18.20.81
Cloudflare
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/rfc/rfc9110
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.20.81 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
2fac45d1ade51c54e5acbc986dc82d1918b5bf7a7e2544c9aea1fdec7022b706
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
public, max-age=1200
cf-cache-status
HIT
cf-ray
9e39b293fc5bc224-TLV
content-encoding
br
content-type
text/html; charset=UTF-8
date
Sat, 28 Mar 2026 21:23:43 GMT
expires
Sat, 28 Mar 2026 21:43:43 GMT
last-modified
Fri, 27 Mar 2026 20:33:23 GMT
priority
u=0,i
server
cloudflare
server-timing
cfExtPri
strict-transport-security
max-age=31536000; includeSubDomains
vary
Accept-Encoding
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-xss-protection
1; mode=block
GET
H2 		200
 css
fonts.googleapis.com/ 		3 KB
1 KB 		450ms
151ms 		Stylesheet
text/css		 142.251.208.10
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Noto+Sans
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/rfc/rfc9110
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
142.251.208.10 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
lcfraa-bp-in-f10.1e100.net
Software
ESF /
Resource Hash
35c048fcd4d20bc35c22922ddd4093291776aa141d0834e822f17c6775fc10a0
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Sat, 28 Mar 2026 21:23:43 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Sat, 28 Mar 2026 21:23:43 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Sat, 28 Mar 2026 20:31:04 GMT
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
cross-origin-opener-policy
same-origin-allow-popups
cross-origin-resource-policy
cross-origin
access-control-allow-origin
*
x-xss-protection
0
server
ESF
GET
H2 		200
 css
fonts.googleapis.com/ 		4 KB
1 KB 		451ms
153ms 		Stylesheet
text/css		 142.251.208.10
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Noto+Serif
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/rfc/rfc9110
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
142.251.208.10 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
lcfraa-bp-in-f10.1e100.net
Software
ESF /
Resource Hash
7ef543e9fe11c0e0c24da72042788aea6009505a3ff4ea097ab6de16b68712b5
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Sat, 28 Mar 2026 21:23:43 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Sat, 28 Mar 2026 21:23:43 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Sat, 28 Mar 2026 20:19:13 GMT
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
cross-origin-opener-policy
same-origin-allow-popups
cross-origin-resource-policy
cross-origin
access-control-allow-origin
*
x-xss-protection
0
server
ESF
GET
H2 		200
 css
fonts.googleapis.com/ 		2 KB
707 B 		454ms
156ms 		Stylesheet
text/css		 142.251.208.10
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Roboto+Mono
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/rfc/rfc9110
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
142.251.208.10 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
lcfraa-bp-in-f10.1e100.net
Software
ESF /
Resource Hash
d2bf6cbfe1d48d88faa3fa4e313baa26b3af647b2aa57cdb976508c2cbb39210
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Sat, 28 Mar 2026 21:23:43 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Sat, 28 Mar 2026 21:23:43 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Sat, 28 Mar 2026 21:05:35 GMT
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
cross-origin-opener-policy
same-origin-allow-popups
cross-origin-resource-policy
cross-origin
access-control-allow-origin
*
x-xss-protection
0
server
ESF
GET

rfc-local.css
www.rfc-editor.org/rfc/ 		0
0

GET
H3 		200
 metadata.min.js Show response
www.rfc-editor.org/js/ 		3 KB
2 KB 		353ms
353ms 		Script
application/javascript		 104.18.20.81
Cloudflare
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/js/metadata.min.js
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/rfc/rfc9110
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.20.81 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
b5222eec167e86fd118f06db853a7ba190747fbf10f17cafff2119b334bf165b
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/rfc/rfc9110

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"c70-5e68a0a81659e-gzip"
x-content-type-options
nosniff
expires
Sun, 29 Mar 2026 01:23:43 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 28 Mar 2026 21:23:43 GMT
content-type
application/javascript
last-modified
Thu, 18 Aug 2022 20:43:59 GMT
vary
Accept-Encoding
priority
u=1,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9e39b295bddac224-TLV
accept-ranges
bytes
content-length
1277
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9a6VI.woff2
fonts.gstatic.com/s/notosans/v42/ 		13 KB
13 KB 		346ms
191ms 		Font
font/woff2		 172.217.16.163
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/notosans/v42/o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9a6VI.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Noto+Sans
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.217.16.163 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s11-in-f163.1e100.net
Software
sffe /
Resource Hash
09aee8065d25508f23a4c3d92cd777ac869c52d93fd868a88f025d888a7937d6
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Origin
https://www.rfc-editor.org
Referer
https://fonts.googleapis.com/

Response headers

age
172988
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options
nosniff
expires
Fri, 26 Mar 2027 21:20:36 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Thu, 26 Mar 2026 21:20:36 GMT
last-modified
Wed, 10 Sep 2025 16:23:43 GMT
content-type
font/woff2
cache-control
public, max-age=31536000
timing-allow-origin
*
cross-origin-opener-policy
same-origin; report-to="apps-themes"
cross-origin-resource-policy
cross-origin
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
accept-ranges
bytes
access-control-allow-origin
*
content-length
13120
x-xss-protection
0
server
sffe
GET
H3 		200
 L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_ROW4.woff2
fonts.gstatic.com/s/robotomono/v31/ 		12 KB
12 KB 		385ms
229ms 		Font
font/woff2		 172.217.16.163
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/robotomono/v31/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_ROW4.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Roboto+Mono
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.217.16.163 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s11-in-f163.1e100.net
Software
sffe /
Resource Hash
e03013e0baa5690a803c188da2214d920c3245b25ad78421ecc8ae86cd842ae9
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Origin
https://www.rfc-editor.org
Referer
https://fonts.googleapis.com/

Response headers

age
254459
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options
nosniff
expires
Thu, 25 Mar 2027 22:42:45 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Wed, 25 Mar 2026 22:42:45 GMT
last-modified
Wed, 10 Sep 2025 16:42:56 GMT
content-type
font/woff2
cache-control
public, max-age=31536000
timing-allow-origin
*
cross-origin-opener-policy
same-origin; report-to="apps-themes"
cross-origin-resource-policy
cross-origin
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
accept-ranges
bytes
access-control-allow-origin
*
content-length
12680
x-xss-protection
0
server
sffe
GET
H3 		200
 o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9e6VLKzA.woff2
fonts.gstatic.com/s/notosans/v42/ 		7 KB
7 KB 		426ms
271ms 		Font
font/woff2		 172.217.16.163
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/notosans/v42/o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9e6VLKzA.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Noto+Sans
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.217.16.163 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s11-in-f163.1e100.net
Software
sffe /
Resource Hash
05af9e705d3b63aedba67197d19fb448b97353e1386930716c7e835b08f126ba
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Origin
https://www.rfc-editor.org
Referer
https://fonts.googleapis.com/

Response headers

age
245916
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options
nosniff
expires
Fri, 26 Mar 2027 01:05:08 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Thu, 26 Mar 2026 01:05:08 GMT
last-modified
Wed, 10 Sep 2025 16:23:37 GMT
content-type
font/woff2
cache-control
public, max-age=31536000
timing-allow-origin
*
cross-origin-opener-policy
same-origin; report-to="apps-themes"
cross-origin-resource-policy
cross-origin
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
accept-ranges
bytes
access-control-allow-origin
*
content-length
7096
x-xss-protection
0
server
sffe
GET
H3 		200
 o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9U6VLKzA.woff2
fonts.gstatic.com/s/notosans/v42/ 		54 KB
54 KB 		302ms
147ms 		Font
font/woff2		 172.217.16.163
Google LLC
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/notosans/v42/o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9U6VLKzA.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Noto+Sans
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
172.217.16.163 , United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s11-in-f163.1e100.net
Software
sffe /
Resource Hash
c8e6bf928ae88c948ebc49dbe1df01ea5505d12408904ea3302309b26487fbca
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Origin
https://www.rfc-editor.org
Referer
https://fonts.googleapis.com/

Response headers

age
238427
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options
nosniff
expires
Fri, 26 Mar 2027 03:09:57 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Thu, 26 Mar 2026 03:09:57 GMT
last-modified
Wed, 10 Sep 2025 16:24:09 GMT
content-type
font/woff2
cache-control
public, max-age=31536000
timing-allow-origin
*
cross-origin-opener-policy
same-origin; report-to="apps-themes"
cross-origin-resource-policy
cross-origin
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
accept-ranges
bytes
access-control-allow-origin
*
content-length
55640
x-xss-protection
0
server
sffe
GET
H3 		200
 rfc9110.json Show response
www.rfc-editor.org/rfc/ 		1 KB
1 KB 		253ms
253ms 		Fetch
application/json		 104.18.20.81
Cloudflare
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/rfc/rfc9110.json
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/js/metadata.min.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.20.81 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
7a933afb246e93f104df90b6109b0206f00dcd6cd636b4c22588e4980bdece31
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/rfc/rfc9110

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"51f-5e890f9f0a8aa-gzip"
x-content-type-options
nosniff
expires
Sat, 28 Mar 2026 21:43:44 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 28 Mar 2026 21:23:44 GMT
content-type
application/json
last-modified
Tue, 13 Sep 2022 15:50:49 GMT
vary
Accept-Encoding
priority
u=1,i
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=1200
cf-ray
9e39b29d2d12c224-TLV
accept-ranges
bytes
access-control-allow-origin
*
content-length
737
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 favicon.ico
www.rfc-editor.org/ 		198 B
402 B 		102ms
102ms 		Other
image/x-icon		 104.18.20.81
Cloudflare
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/favicon.ico
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.20.81 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
8a91d0d5efcf4458450a756f5b8cea35b649b13b62650eee47e93e716daa23dc
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/rfc/rfc9110

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"c6-5dfdd05f66b9c-gzip"
age
30110
x-content-type-options
nosniff
expires
Sun, 29 Mar 2026 01:23:44 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 28 Mar 2026 21:23:44 GMT
content-type
image/x-icon
last-modified
Wed, 25 May 2022 21:47:44 GMT
vary
Accept-Encoding
priority
u=1,i
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9e39b29dfdfec224-TLV
accept-ranges
bytes
content-length
96
x-xss-protection
1; mode=block
server
cloudflare

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain
www.rfc-editor.org
URL
https://www.rfc-editor.org/rfc/rfc-local.css

Verdicts & Comments Add Verdict or Comment

1 JavaScript Window variables

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

function| addMetadata

1 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path Expires Name / Value
.rfc-editor.org/ 1970-01-21
12:58:54 		Name: __cf_bm
Value: Cxk.mpRHnMxQpoB5MPL1Wws3cKz8hr4bgP.2x7CZg2s-1774733023.3605096-1.0.1.1-EcgyBj3DqhNc6u3YXjMVCZYkgRgiq7D887GTRC21zSDg2O.sLjxYEcEOPTcjA4fLYdl.UK1zaxyUdotW5QtGMR8BGtc9X5HB5mvR3MRC_w7TVioq2No0rBw4lKnZxb7T

1 Console Messages

A page may trigger messages to the console to be logged. These are often error messages about being unable to load a resource or execute a piece of JavaScript. Sometimes they also provide insight into the technology behind a website.

Source Level URL
Text
security error URL: https://www.rfc-editor.org/rfc/rfc9110
Message:
Refused to apply style from 'https://www.rfc-editor.org/rfc/rfc-local.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.

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; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block