www.ietf.org
104.16.44.99  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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Add Verdict Report
URL:
https://www.ietf.org/rfc/rfc9562.html 9yr old
Submission: On October 17 via api (October 17th 2025, 2:12:29 am UTC) from US — Scanned from IL
Summary HTTP 12 Redirects Links 57  Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 4 IPs in 2 countries across 4 domains to perform 12 HTTP transactions. The main IP is 104.16.44.99, located in Ascension Island and belongs to CLOUDFLARENET, US. The main domain is www.ietf.org. The Cisco Umbrella rank of the primary domain is 16211. 9yr old
TLS certificate: Issued by E8 on September 15th 2025. Valid for: 3mo.
This is the only time www.ietf.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 6 104.16.44.99 104.16.44.99 13335 (CLOUDFLAR...) (CLOUDFLARENET)
3 142.250.186.74 142.250.186.74 15169 (GOOGLE) (GOOGLE)
2 104.18.21.81 104.18.21.81 13335 (CLOUDFLAR...) (CLOUDFLARENET)
2 142.250.74.195 142.250.74.195 15169 (GOOGLE) (GOOGLE)
12 4
Apex Domain
Subdomains		 Transfer
6 ietf.org 1 redirects
www.ietf.org — Cisco Umbrella Rank: 16211 9yr old
62 KB
3 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 50 10yr old
3 KB
2 gstatic.com
fonts.gstatic.com 10yr old
25 KB
2 rfc-editor.org
www.rfc-editor.org — Cisco Umbrella Rank: 370822 9yr old
3 KB
12 4
Domain Requested by
6 www.ietf.org 1 redirects www.ietf.org
3 fonts.googleapis.com www.ietf.org
2 fonts.gstatic.com fonts.googleapis.com
2 www.rfc-editor.org www.ietf.org
www.rfc-editor.org
12 4
Subject Issuer Validity Valid
ietf.org
E8		 2025-09-15 -
2025-12-14		 3mo crt.sh
upload.video.google.com
WE2		 2025-09-22 -
2025-12-15		 3mo crt.sh
rfc-editor.org
WE1		 2025-08-22 -
2025-11-20		 3mo crt.sh
*.gstatic.com
WE2		 2025-09-22 -
2025-12-15		 3mo crt.sh

This page contains 2 frames:

Primary Page: https://www.ietf.org/rfc/rfc9562.html
Frame ID: 80E1B32BB338D568F95E7DCD18651C70
Requests: 10 HTTP requests in this frame

Frame: https://www.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/e9c9e9d67513/main.js
Frame ID: A7D5C12009424D868FC9A70FBC7835D1
Requests: 2 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

RFC 9562: Universally Unique IDentifiers (UUIDs)

Page Statistics

12
Requests

92 %
HTTPS

0 %
IPv6

4
Domains

4
Subdomains

4
IPs

2
Countries

93 kB
Transfer

370 kB
Size

3
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 7
  • https://www.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js HTTP 302
  • https://www.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/e9c9e9d67513/main.js

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 rfc9562.html Show response
www.ietf.org/rfc/ 		247 KB
49 KB 		247ms
168ms 		Document
text/html		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.ietf.org/rfc/rfc9562.html
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
620c1eedbbf09357ee5db98b266b71440c650d60575981d503e76e1855f75bb9

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
public, max-age=14400
cf-cache-status
HIT
cf-ray
98fc45780bd7c21f-TLV
content-encoding
br
content-type
text/html; charset=utf-8
date
Fri, 17 Oct 2025 02:12:30 GMT
expires
Fri, 17 Oct 2025 06:12:30 GMT
last-modified
Tue, 07 May 2024 18:44:00 GMT
priority
u=0,i
server
cloudflare
server-timing
cfExtPri
vary
Accept-Encoding
GET
H2 		200
 css
fonts.googleapis.com/ 		3 KB
810 B 		384ms
134ms 		Stylesheet
text/css		 142.250.186.74
GOOGLE
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Noto+Sans
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/rfc/rfc9562.html
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.250.186.74 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra24s05-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/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Fri, 17 Oct 2025 02:12:30 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Fri, 17 Oct 2025 02:12:30 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 		381ms
131ms 		Stylesheet
text/css		 142.250.186.74
GOOGLE
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Noto+Serif
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/rfc/rfc9562.html
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.250.186.74 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra24s05-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/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Fri, 17 Oct 2025 02:12:30 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Fri, 17 Oct 2025 01:09:13 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 		381ms
131ms 		Stylesheet
text/css		 142.250.186.74
GOOGLE
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Roboto+Mono
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/rfc/rfc9562.html
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
142.250.186.74 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra24s05-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/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Fri, 17 Oct 2025 02:12:30 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Fri, 17 Oct 2025 00:16:48 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
H3 		404
 rfc-local.css
www.ietf.org/rfc/ 		0
0 		440ms
440ms 		Stylesheet
text/html		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.ietf.org/rfc/rfc-local.css
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/rfc/rfc9562.html
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/rfc/rfc9562.html

Response headers

cache-control
public, max-age=14400
content-encoding
br
cf-cache-status
EXPIRED
cf-ray
98fc45793c2cc21f-TLV
expires
Fri, 17 Oct 2025 06:12:30 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
text/html
vary
Accept-Encoding
server
cloudflare
priority
u=0,i=?0
GET
H2 		200
 metadata.min.js Show response
www.rfc-editor.org/js/ 		3 KB
2 KB 		379ms
227ms 		Script
application/javascript		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/js/metadata.min.js
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/rfc/rfc9562.html
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, 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/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"c70-5e68a0a81659e-gzip"
x-content-type-options
nosniff
expires
Fri, 17 Oct 2025 06:12:30 GMT
alt-svc
h3=":443"; ma=86400
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
application/javascript
last-modified
Thu, 18 Aug 2022 20:43:59 GMT
vary
Accept-Encoding
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
98fc457a2a12c231-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 		253ms
122ms 		Font
font/woff2		 142.250.74.195
GOOGLE
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
142.250.74.195 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra24s02-in-f3.1e100.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/141.0.0.0 Safari/537.36
Origin
https://www.ietf.org
Referer
https://fonts.googleapis.com/

Response headers

age
196337
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
Wed, 14 Oct 2026 19:40:13 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Tue, 14 Oct 2025 19:40:13 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 		282ms
152ms 		Font
font/woff2		 142.250.74.195
GOOGLE
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
142.250.74.195 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra24s02-in-f3.1e100.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/141.0.0.0 Safari/537.36
Origin
https://www.ietf.org
Referer
https://fonts.googleapis.com/

Response headers

age
238953
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
Wed, 14 Oct 2026 07:49:57 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Tue, 14 Oct 2025 07:49:57 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
 main.js Show response
www.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/e9c9e9d67513/ Frame A7D5
Redirect Chain
  • https://www.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js
  • https://www.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/e9c9e9d67513/main.js?
10 KB
5 KB 		79ms
79ms 		Script
application/javascript		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/e9c9e9d67513/main.js?
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/rfc/rfc9562.html
Protocol
H3
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
90275b5508331652607d7f17437f4392ddc5687ab16bfb71d7b2d992a4dc11aa
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Referer

Response headers

cache-control
max-age=14400, stale-if-error=10800, stale-while-revalidate=10800, public
content-encoding
br
x-content-type-options
nosniff
cf-ray
98fc457cbd23c21f-TLV
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
application/javascript; charset=UTF-8
vary
Accept-Encoding
server
cloudflare
priority
u=3,i=?0

Redirect headers

cache-control
max-age=300, stale-if-error=10800, stale-while-revalidate=10800, public
location
/cdn-cgi/challenge-platform/h/g/scripts/jsd/e9c9e9d67513/main.js?
cf-ray
98fc457c3cfec21f-TLV
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
0
server-timing
cfExtPri
date
Fri, 17 Oct 2025 02:12:30 GMT
vary
Accept-Encoding
server
cloudflare
priority
u=3,i=?0
POST
H3 		200
 98fc45780bd7c21f Show response
www.ietf.org/cdn-cgi/challenge-platform/h/g/jsd/r/0.31093954321451195:1760099306:PYl1JJi_a61rqQmhSomRc7mzq5WI4fFR_laoGfpN5iA/ Frame A7D5 		0
466 B 		93ms
84ms 		XHR
text/plain		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.ietf.org/cdn-cgi/challenge-platform/h/g/jsd/r/0.31093954321451195:1760099306:PYl1JJi_a61rqQmhSomRc7mzq5WI4fFR_laoGfpN5iA/98fc45780bd7c21f
Requested by
Host: www.ietf.org
URL: https://www.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Content-Type
text/plain;charset=UTF-8
Referer

Response headers

cf-ray
98fc457d8d69c21f-TLV
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
content-length
0
date
Fri, 17 Oct 2025 02:12:30 GMT
content-type
text/plain; charset=UTF-8
server
cloudflare
priority
u=1,i
GET
H3 		200
 rfc9562.json Show response
www.rfc-editor.org/rfc/ 		1 KB
1 KB 		578ms
506ms 		Fetch
application/json		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/rfc/rfc9562.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
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
1f51e4cceb6782e28a2930154e81b71ff92e67ab11fc3f1b3c34598407266e8a
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/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"523-61837ebdaae1c-gzip"
x-content-type-options
nosniff
expires
Fri, 17 Oct 2025 02:32:31 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Fri, 17 Oct 2025 02:12:31 GMT
content-type
application/json
last-modified
Sun, 12 May 2024 01:45:19 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
98fc457eac7b7d9a-TLV
accept-ranges
bytes
access-control-allow-origin
*
content-length
742
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		404
 favicon.ico
www.ietf.org/ 		75 KB
8 KB 		164ms
164ms 		Other
text/html		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.ietf.org/favicon.ico
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
236b9f016f08bd4f0a167713118c6dcbe4f96c73746fcced93c6264a660de640
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Frame-Options DENY

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Referer
https://www.ietf.org/rfc/rfc9562.html

Response headers

content-encoding
br
cf-cache-status
HIT
x-content-type-options
nosniff
expires
Fri, 17 Oct 2025 06:12:31 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Fri, 17 Oct 2025 02:12:31 GMT
content-type
text/html; charset=utf-8
vary
Cookie, accept-encoding
priority
u=1,i
x-frame-options
DENY
cache-control
public, max-age=14400
cross-origin-opener-policy
same-origin
referrer-policy
same-origin
cf-ray
98fc457e5d96c21f-TLV
server
cloudflare

Verdicts & Comments Add Verdict or Comment

2 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.

object| 0 function| addMetadata

3 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
.ietf.org/ 1970-01-21
09:04:28 		Name: __cf_bm
Value: HTsRSVCP3NK2BnpNjhCCj1CwNHAnY8sCY2AvzJqv6QA-1760667150-1.0.1.1-hxjZXrDLW_AFacD0PqCLeGccKYde8jPTIW9Oq.zCe00F79wisi36CWuJi0yLBnazgpRdP462iPz4p91vw_ogCyAuBK_p0WKsLyGRdV1Uc14
.rfc-editor.org/ 1970-01-21
09:04:28 		Name: __cf_bm
Value: IsVV_4gJxsHotd_20uStZsOWam5X.FjWl59jUKIMiBI-1760667150-1.0.1.1-j8M0UrcleCc.LdwPMXAzcS4fgMr0.dubvbmAEF3f1NpE0fEtCJ44UFiDN9d84kYkhk477kz1uVQOe1waajOZcAgPJI2BkxjsWon4IFYG8SM
.ietf.org/ 1970-01-21
17:50:03 		Name: cf_clearance
Value: jMZEjCVENr36N4ze9Ycvk_MWKipvjVRokuP8aD3TD9g-1760667150-1.2.1.1-qrXwD93KgvZxbgt_BDZy3zoh5SEVsKiRkFeVgJvKivNwjhHJQ0410rC44p3zFvQNjLhaGT.D8_UJHODhou_B3kiEcM5xq2uracJKHWP5T7QeGGKAFXGA4mLi.NkL2iBqxzXDykEnHhQspV1Tvc0JL4W5Ji46M3E6odRTae4O1uugFTi1o0eBsyzqPbWZpdJErLUBpZc3rCo2mt1kuRKMQiWJ8cOFNvxZ67B2myDDQ1M

2 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
network error URL: https://www.ietf.org/rfc/rfc-local.css
Message:
Failed to load resource: the server responded with a status of 404 ()
network error URL: https://www.ietf.org/favicon.ico
Message:
Failed to load resource: the server responded with a status of 404 ()