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datatracker.ietf.org
104.16.44.99  Public Scan Open in urlscan Pro

Go To Rescan Add Verdict Report
Submitted URL: https://tools.ietf.org/html/rfc4121#section-4.1 13yr old
Effective URL: https://datatracker.ietf.org/doc/html/rfc4121 9yr old
Submission: On March 16 via api from ES — Scanned from DE
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 3 IPs in 1 countries across 1 domains to perform 21 HTTP transactions. The main IP is 104.16.44.99, located in Ascension Island and belongs to CLOUDFLARENET - Cloudflare, Inc., US. The main domain is datatracker.ietf.org. The Cisco Umbrella rank of the primary domain is 434225. 9yr old
TLS certificate: Issued by E8 on March 11th 2026. Valid for: 3mo.
This is the only time datatracker.ietf.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
2 15 104.16.44.99 13335 (CLOUDFLAR...)
8 104.16.45.99 13335 (CLOUDFLAR...)
21 3
Apex Domain
Subdomains		 Transfer
23 ietf.org
tools.ietf.org — Cisco Umbrella Rank: 759670 13yr old
datatracker.ietf.org — Cisco Umbrella Rank: 434225 9yr old
static.ietf.org — Cisco Umbrella Rank: 502078 3yr old
analytics.ietf.org — Cisco Umbrella Rank: 896577 6yr old
466 KB
21 1
Domain Requested by
15 static.ietf.org datatracker.ietf.org
static.ietf.org
5 datatracker.ietf.org 1 redirects datatracker.ietf.org
static.ietf.org
2 analytics.ietf.org datatracker.ietf.org
analytics.ietf.org
1 tools.ietf.org 1 redirects
21 4

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

Domain
www.rfc-editor.org
lists.anl.gov
github.com
www.ietf.org
Subject Issuer Validity Valid
ietf.org
E8		 2026-03-11 -
2026-06-09		 3mo crt.sh
static.ietf.org
WE1		 2026-02-13 -
2026-05-14		 3mo crt.sh

This page contains 2 frames:

Primary Page: https://datatracker.ietf.org/doc/html/rfc4121
Frame ID: 8E823B16E1628627A1F6C60CF50B95EC
Requests: 20 HTTP requests in this frame

Frame: https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/ea2d291c0fdc/main.js
Frame ID: 8E0985C583B061D44D53AD86E4BD49F2
Requests: 2 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

RFC 4121 - The Kerberos Version 5 Generic Security Service Application Program Interface (GSS-API) Mechanism: Version 2

Page URL History Show full URLs

  1. https://tools.ietf.org/html/rfc4121 HTTP 301
    https://datatracker.ietf.org/doc/html/rfc4121 Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <(?!svg)[^>]+\sdata-v(?:ue)?-
Overall confidence: 100%
Detected patterns

Page Statistics

21
Requests

95 %
HTTPS

0 %
IPv6

1
Domains

4
Subdomains

3
IPs

1
Countries

464 kB
Transfer

1237 kB
Size

2
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. https://tools.ietf.org/html/rfc4121 HTTP 301
    https://datatracker.ietf.org/doc/html/rfc4121 Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 15
  • https://datatracker.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js HTTP 302
  • https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/ea2d291c0fdc/main.js

21 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request rfc4121
datatracker.ietf.org/doc/html/
Redirect Chain
  • https://tools.ietf.org/html/rfc4121
  • https://datatracker.ietf.org/doc/html/rfc4121
101 KB
20 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
a866318bc9e4b8956b448660ebabb1abc313d568731d75dc73595140c7099782
Security Headers
Name Value
Content-Security-Policy default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
Strict-Transport-Security max-age=3600; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
public, max-age=14400
cf-cache-status
REVALIDATED
cf-ray
9dd33f864b51d285-FRA
content-encoding
br
content-security-policy
default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
content-type
text/html; charset=utf-8
cross-origin-opener-policy
unsafe-none
date
Mon, 16 Mar 2026 10:59:23 GMT
expires
Mon, 16 Mar 2026 14:59:23 GMT
priority
u=0,i
referrer-policy
strict-origin-when-cross-origin
server
cloudflare
server-timing
cfExtPri
strict-transport-security
max-age=3600; includeSubDomains
vary
Cookie, Accept-Encoding
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN

Redirect headers

alt-svc
h3=":443"; ma=86400
cache-control
max-age=3600
cf-ray
9dd33f859aa24d67-FRA
content-length
167
content-security-policy-report-only
script-src 'none'; connect-src 'none'; report-uri https://csp-reporting.cloudflare.com/cdn-cgi/script_monitor/report?m=OOvseopafb1004JlyqWh3rEshAnJ1QKDN1vnDRl2mHI-1773658763-1.0.1.1-s9bP8GFN0u0ECTdPjFhHPO6D6nAVz3AGLsJYvyPUWonO6XH2V4H5JEP_fd3iT84a07SmmkZnSgjB0BvTcF_aFMzbxlS8MS0HPMYLwu98h4scBQNr4Wn7CYs66SroXJZ50cY5dkdhqqYPlTrEe7frN6ysg5BCsJRcGyOXFFv6ftAtJ.kHS7mXTDOcdp5PMbHT; report-to cf-csp-endpoint
content-type
text/html
date
Mon, 16 Mar 2026 10:59:23 GMT
expires
Mon, 16 Mar 2026 11:59:23 GMT
location
https://datatracker.ietf.org/doc/html/rfc4121
priority
u=0,i
report-to
{"endpoints":[{"url":"https:\/\/csp-reporting.cloudflare.com\/cdn-cgi\/script_monitor\/report?m=OOvseopafb1004JlyqWh3rEshAnJ1QKDN1vnDRl2mHI-1773658763-1.0.1.1-s9bP8GFN0u0ECTdPjFhHPO6D6nAVz3AGLsJYvyPUWonO6XH2V4H5JEP_fd3iT84a07SmmkZnSgjB0BvTcF_aFMzbxlS8MS0HPMYLwu98h4scBQNr4Wn7CYs66SroXJZ50cY5dkdhqqYPlTrEe7frN6ysg5BCsJRcGyOXFFv6ftAtJ.kHS7mXTDOcdp5PMbHT"}],"group":"cf-csp-endpoint","max_age":86400}
server
cloudflare
server-timing
cfExtPri
vary
Accept-Encoding
x-robots-tag
noindex, nofollow
import.css
static.ietf.org/fonts/inter/ 		17 KB
900 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/fonts/inter/import.css
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
2c7ca5045d08246698e0d013365deb0503a2ef9edc7b93dc2639894611f93173

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"7b61f256640b0692a7f9fe4e680aac32"
age
81178
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/css
last-modified
Tue, 18 Jul 2023 15:35:09 GMT
vary
Accept-Encoding
priority
u=0,i=?0
cache-control
public, max-age=3600
cf-ray
9dd33f88eb06d285-FRA
access-control-allow-origin
*
server
cloudflare
import.css
static.ietf.org/fonts/noto-sans-mono/ 		20 KB
926 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/fonts/noto-sans-mono/import.css
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
c64d8d328d884c4c61b9ebb98a4a2f9613e6de00c8d6f1d880380ba8627630a9

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"45c68dabf31645a5242a4febcc3fbb59"
age
998
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/css
last-modified
Tue, 18 Jul 2023 15:41:39 GMT
vary
Accept-Encoding
priority
u=0,i=?0
cache-control
public, max-age=3600
cf-ray
9dd33f88eb02d285-FRA
access-control-allow-origin
*
server
cloudflare
document_html_referenced.css
static.ietf.org/dt/12.60.0/ietf/css/ 		297 KB
43 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/ietf/css/document_html_referenced.css
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
eb45960fb841ac38131848ade5dae44f7e9384060674cc1da07fd715a75b9c0e

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"104485a90b97e2f0d65135aa30b09465"
age
48440
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/css
last-modified
Wed, 04 Mar 2026 18:41:06 GMT
vary
Accept-Encoding
priority
u=0,i=?0
cache-control
public, max-age=3600
cf-ray
9dd33f88eb0ad285-FRA
access-control-allow-origin
*
server
cloudflare
embedded-25f7d50a.js
static.ietf.org/dt/12.60.0/assets/ 		16 KB
5 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/assets/embedded-25f7d50a.js
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
783ccb8e70eee645a5664883b7afe9ca6b63598b78bad5a5fbfb5026b81ab599

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer
https://datatracker.ietf.org/

Response headers

cache-control
public, max-age=3600
content-encoding
br
cf-cache-status
HIT
etag
W/"1dc4e2d5434eba66641334ce3d964f59"
age
48459
cf-ray
9dd33f89df9a43d2-FRA
expires
Mon, 16 Mar 2026 11:59:23 GMT
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/javascript
last-modified
Wed, 04 Mar 2026 18:41:06 GMT
vary
Origin, Accept-Encoding
server
cloudflare
create-pinia-singleton-39c6c62d.js
static.ietf.org/dt/12.60.0/assets/ 		205 KB
66 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/assets/create-pinia-singleton-39c6c62d.js
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
151954866108eb806ee4fe2da70e8205275b36932e669f73d1392059f45d323f

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer
https://datatracker.ietf.org/

Response headers

cache-control
public, max-age=3600
content-encoding
br
cf-cache-status
HIT
etag
W/"19c42c90032b721f753b9b6968b6312a"
age
79488
cf-ray
9dd33f89df9343d2-FRA
expires
Mon, 16 Mar 2026 11:59:23 GMT
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/javascript
last-modified
Wed, 04 Mar 2026 18:41:06 GMT
vary
Origin, Accept-Encoding
server
cloudflare
Scrollbar-bebeb6e9.js
static.ietf.org/dt/12.60.0/assets/ 		25 KB
9 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/assets/Scrollbar-bebeb6e9.js
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
3d5c29bd5c383d7d29424518cc7c00ed6ff65c4044e78b92498040d78955b144

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer
https://datatracker.ietf.org/

Response headers

cache-control
public, max-age=3600
content-encoding
br
cf-cache-status
HIT
etag
W/"f858e0b52ec0d810953bc9486c3c0bc0"
age
48458
cf-ray
9dd33f89df9643d2-FRA
expires
Mon, 16 Mar 2026 11:59:23 GMT
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/javascript
last-modified
Wed, 04 Mar 2026 18:41:06 GMT
vary
Origin, Accept-Encoding
server
cloudflare
document_html.js
static.ietf.org/dt/12.60.0/ietf/js/ 		251 KB
78 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/ietf/js/document_html.js
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
6ea4799c163988a12638f8166b12f289afc76ceb3a2ede3e43d32f057e07c94c

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"c6b63042063965dd354d0df593b171f4"
age
48449
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/javascript
last-modified
Wed, 04 Mar 2026 18:41:08 GMT
vary
Accept-Encoding
priority
u=1,i=?0
cache-control
public, max-age=3600
cf-ray
9dd33f890b4dd285-FRA
access-control-allow-origin
*
server
cloudflare
theme.js
static.ietf.org/dt/12.60.0/ietf/js/ 		2 KB
895 B 		Script
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/ietf/js/theme.js
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
faf5c993b3668f3fad0144bf9a35a775e4b0e549aacbbeb03a08d8e591f8929c

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"63b4597b8d532fb8c3bb18d432710c1f"
age
48794
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
text/javascript
last-modified
Wed, 04 Mar 2026 18:41:10 GMT
vary
Accept-Encoding
priority
u=1,i=?0
cache-control
public, max-age=3600
cf-ray
9dd33f890b51d285-FRA
access-control-allow-origin
*
server
cloudflare
ietf-logo-nor-white.svg
static.ietf.org/dt/12.60.0/ietf/images/ 		6 KB
3 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://static.ietf.org/dt/12.60.0/ietf/images/ietf-logo-nor-white.svg
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
35fa36e3d14d04f348028956a89b547aeecf99b9dd4c0685e8ffdc39b97b02dd

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"8d9c8ceca32a4fb3632576fd8822bb7c"
age
48787
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
image/svg+xml
last-modified
Wed, 04 Mar 2026 18:41:07 GMT
vary
Accept-Encoding
priority
u=2,i
cache-control
public, max-age=3600
cf-ray
9dd33f899ceed285-FRA
access-control-allow-origin
*
server
cloudflare
ietf-logo-nor.svg
static.ietf.org/dt/12.60.0/ietf/images/ 		6 KB
3 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://static.ietf.org/dt/12.60.0/ietf/images/ietf-logo-nor.svg
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
de41055f3d3e82e5b05d572acac5eac3a29d58922ecf978cb660019b7091669c

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"7ff37f7f19c54be2a299762bec9ce6d0"
age
48787
expires
Mon, 16 Mar 2026 11:59:23 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:23 GMT
content-type
image/svg+xml
last-modified
Wed, 04 Mar 2026 18:41:07 GMT
vary
Accept-Encoding
priority
u=2,i
cache-control
public, max-age=3600
cf-ray
9dd33f899cf4d285-FRA
access-control-allow-origin
*
server
cloudflare
matomo.js
analytics.ietf.org/ 		66 KB
22 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://analytics.ietf.org/matomo.js
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
1762dd6a64fcd59421610b68625258f9224a1f278159c4d99282adb631470465

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"698296d5-10984"
age
4060
expires
Tue, 17 Mar 2026 10:59:24 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
application/javascript
last-modified
Wed, 04 Feb 2026 00:46:13 GMT
vary
Accept-Encoding
priority
u=3,i=?0
cache-control
public, max-age=86400
pragma
public
cf-ray
9dd33f8bec07d285-FRA
server
cloudflare
noto-sans-mono-latin.woff2
static.ietf.org/fonts/noto-sans-mono/ 		32 KB
32 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/fonts/noto-sans-mono/noto-sans-mono-latin.woff2
Requested by
Host: static.ietf.org
URL: https://static.ietf.org/fonts/noto-sans-mono/import.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
4223382c2fb8043edd3718a9268e93e90b9e38f6077807bfdc7c2c63eab8e559

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer
https://static.ietf.org/fonts/noto-sans-mono/import.css

Response headers

cache-control
public, max-age=3600
cf-cache-status
HIT
etag
"92a9bc59413e3795344505e811024bc8"
age
74154
cf-ray
9dd33f8c4e6543d2-FRA
expires
Mon, 16 Mar 2026 11:59:24 GMT
accept-ranges
bytes
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
32548
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
font/woff2
last-modified
Mon, 15 May 2023 20:04:05 GMT
vary
Origin, Accept-Encoding
server
cloudflare
bootstrap-icons.3536be6d.woff2
static.ietf.org/dt/12.60.0/ietf/ 		127 KB
128 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/ietf/bootstrap-icons.3536be6d.woff2
Requested by
Host: static.ietf.org
URL: https://static.ietf.org/dt/12.60.0/ietf/css/document_html_referenced.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
476adf42b40325098fcfa8b36ab3e769186bb4f6ce6a249753e2e1a9c22bf99e

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer
https://static.ietf.org/dt/12.60.0/ietf/css/document_html_referenced.css

Response headers

cache-control
public, max-age=3600
cf-cache-status
HIT
etag
"cc1e5eda776be5f0ff614285c31d4892"
age
48458
cf-ray
9dd33f8c6eb043d2-FRA
expires
Mon, 16 Mar 2026 11:59:24 GMT
accept-ranges
bytes
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
130396
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
font/woff2
last-modified
Wed, 04 Mar 2026 18:41:06 GMT
vary
Origin, Accept-Encoding
server
cloudflare
inter-latin.woff2
static.ietf.org/fonts/inter/ 		37 KB
37 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/fonts/inter/inter-latin.woff2
Requested by
Host: static.ietf.org
URL: https://static.ietf.org/fonts/inter/import.css
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
450f3ba4e47ee174bd9692b396f264b907d37d2528f53911760f3d0edb785f7e

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer
https://static.ietf.org/fonts/inter/import.css

Response headers

cache-control
public, max-age=3600
cf-cache-status
HIT
etag
"e08be6d5d433944f7ad52902e4d24db5"
age
75754
cf-ray
9dd33f8c6eb343d2-FRA
expires
Mon, 16 Mar 2026 11:59:24 GMT
accept-ranges
bytes
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
37924
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
font/woff2
last-modified
Mon, 15 May 2023 20:04:04 GMT
vary
Origin, Accept-Encoding
server
cloudflare
Status-dbe405de.js
static.ietf.org/dt/12.60.0/assets/ 		2 KB
1 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/assets/Status-dbe405de.js
Requested by
Host: static.ietf.org
URL: https://static.ietf.org/dt/12.60.0/assets/create-pinia-singleton-39c6c62d.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
059d01f504588b0b5fd61b00b33b37ca79ef9f998a662ee5b3b8a4dd44750931

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Origin
https://datatracker.ietf.org
Referer

Response headers

cache-control
public, max-age=3600
content-encoding
br
cf-cache-status
HIT
etag
W/"024d392905b2d6b7071f401c568ea073"
age
51954
cf-ray
9dd33f8c8ef443d2-FRA
expires
Mon, 16 Mar 2026 11:59:24 GMT
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
text/javascript
last-modified
Wed, 04 Mar 2026 18:41:06 GMT
vary
Origin, Accept-Encoding
server
cloudflare
main.js
datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/ea2d291c0fdc/ Frame 8E09
Redirect Chain
  • https://datatracker.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js
  • https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/ea2d291c0fdc/main.js?
26 KB
12 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/scripts/jsd/ea2d291c0fdc/main.js?
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc4121
Protocol
H3
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
cecd886ed3ca4a7203222dc7afe55a9dd3a5816a9e260992d28facb2dfa8e445
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/145.0.0.0 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
9dd33f8ccf00d285-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:24 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/ea2d291c0fdc/main.js?
cf-ray
9dd33f8c7ddcd285-FRA
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
0
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:24 GMT
vary
Accept-Encoding
server
cloudflare
priority
u=3,i=?0
truncated
/ 		183 B
0 		Image
General
Check archive.org
Download Go to Show image
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
d8c89b0459ec4d6069037002ff5d824395ff37dbf866bc4298fce22d336b182a

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer

Response headers

Content-Type
image/svg+xml
matomo.php
analytics.ietf.org/ 		0
0 		Ping
General
Check archive.org
Download Go to
Full URL
https://analytics.ietf.org/matomo.php?action_name=RFC%204121%20-%20The%20Kerberos%20Version%205%20Generic%20Security%20Service%20Application%20Program%20Interface%20(GSS-API)%20Mechanism%3A%20Version%202&idsite=7&rec=1&r=548507&h=11&m=59&s=24&url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Frfc4121%23section-4.1&_id=&_idn=1&send_image=0&_refts=0&pv_id=JOcN8C&pf_net=59&pf_srv=358&pf_tfr=204&pf_dm1=566&uadata=%7B%22formFactors%22%3A%5B%5D%2C%22fullVersionList%22%3A%5B%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22%22%2C%22platformVersion%22%3A%22%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=1600x1200
Requested by
Host: analytics.ietf.org
URL: https://analytics.ietf.org/matomo.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
/
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Content-Type
application/x-www-form-urlencoded; charset=utf-8
Referer
https://datatracker.ietf.org/

Response headers
latest.json
datatracker.ietf.org/status/ 		21 B
540 B 		Fetch
General
Check archive.org
Download Go to
Full URL
https://datatracker.ietf.org/status/latest.json
Requested by
Host: static.ietf.org
URL: https://static.ietf.org/dt/12.60.0/assets/Status-dbe405de.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
02a8efa9ca9e2eb5890f0bfab23debcafffccc4bc12190f91d4675c9539c6e67
Security Headers
Name Value
Content-Security-Policy default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
Strict-Transport-Security max-age=3600; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/doc/html/rfc4121

Response headers

cf-cache-status
HIT
etag
"ca1e9866f5f9956ba23cd89e22f4c9f1"
age
478
x-content-type-options
nosniff
expires
Mon, 16 Mar 2026 14:59:24 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
application/json
vary
Cookie, origin, Accept-Encoding
priority
u=1,i
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=3600; includeSubDomains
content-security-policy
default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
cache-control
public, max-age=14400
cross-origin-opener-policy
unsafe-none
referrer-policy
strict-origin-when-cross-origin
cf-ray
9dd33f8cdf45d285-FRA
accept-ranges
bytes
content-length
21
server
cloudflare
9dd33f864b51d285
datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/jsd/oneshot/ea2d291c0fdc/0.9934832660239861:1773657012:HaNYpkbbbL-JkPB40JA6b8cG6f9a7khtPJuPRa078m8/ Frame 8E09 		0
926 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/g/jsd/oneshot/ea2d291c0fdc/0.9934832660239861:1773657012:HaNYpkbbbL-JkPB40JA6b8cG6f9a7khtPJuPRa078m8/9dd33f864b51d285
Requested by
Host: datatracker.ietf.org
URL: https://datatracker.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 - Cloudflare, Inc., 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/145.0.0.0 Safari/537.36
Content-Type
text/plain;charset=UTF-8
Referer

Response headers

timing-allow-origin
https://datatracker.ietf.org
cf-ray
9dd33f8d99bed285-FRA
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
content-length
0
cf-chl-out-s
XpOaGMhL0Jr9ZIHq9OIUvytWiHqzhsTjx5wryPuI5TxMYUC5+KZIxxbpP8MOxYRfUnNGa2M8Iz38w3Q51CaWeikDamaHHBgaW8KzCPXJI5XjrjnzySJXTUSk9BMDrj9vkCIGNVNdCMaOW1vNYjXYl24jJL4400TSrl4jMpq2vbeUbf+I0irdbaabCYo4uB5G5Jy1+YK/kf/NVqg9hAKK74O6ikXvz7vgUYoj/1sr1r3+NOD+W5oK8grdwRo51USkwzMKkdbYfjHKgz5QtI3RZGs72x5IcfReKTwXOuRffSwVaMKXkzcVpQNHjWEw1nhOlahoyq3e2y/rNf3TjijCkc+iG5g7pwDWkvFHUWuxZzric94rIZimHQcuG+QSEhCSYZKufkPKtyq+MHqIBRppoSmcykH9KGEQffpv2WQpPJcQdVDsVaKwNaxSI/I8v+hvNvA2mdp3XMTEk77M0HOyXElKzzFSrbAFIY6nwL8x61Y=$3lTFvRMCZla8yN3oQVEKTg==
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
text/plain; charset=UTF-8
server
cloudflare
priority
u=1,i
ietf-logo-nor-32.png
static.ietf.org/dt/12.60.0/ietf/images/ 		857 B
1 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://static.ietf.org/dt/12.60.0/ietf/images/ietf-logo-nor-32.png
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.16.45.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
9b8ea08883a7ba9f91e7c137c89a4356d621ade48207f392fa9c77fd41d23c5f

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36
Referer
https://datatracker.ietf.org/

Response headers

cache-control
public, max-age=3600
cf-cache-status
HIT
etag
"2bc4894b1a88b27c62d83b61c527c7af"
age
48453
cf-ray
9dd33f8e08fca19f-FRA
expires
Mon, 16 Mar 2026 11:59:24 GMT
accept-ranges
bytes
access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
content-length
857
date
Mon, 16 Mar 2026 10:59:24 GMT
content-type
image/png
last-modified
Wed, 04 Mar 2026 18:41:07 GMT
vary
Accept-Encoding
server
cloudflare

Verdicts & Comments Add Verdict or Comment

14 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| parcelRequire94c2 number| uidEvent function| setupSelect2Field object| _paq object| __VUE_INSTANCE_SETTERS__ object| __VUE_SSR_SETTERS__ object| __cssrContext object| pinia boolean| __VUE__ object| Piwik object| Matomo object| AnalyticsTracker function| piwik_log

2 Cookies

Domain/Path Name / Value
.ietf.org/ Name: __cf_bm
Value: _aVrdfzeuGKwH0kpR7T6WIcH8YrZ9l.o_pj_yC4gu6E-1773658763-1.0.1.1-BbVGUkBmhiGV8O0N6nnXKReejDZH3bnKsTdJHOrCwwCNNlWqOmnKKNomELh64Sis39yoM25LfOil3BSODnKamtMSD7PwvpM3mngXyzfGuJE
.ietf.org/ Name: cf_clearance
Value: 204pcHmLRmS.cKSv3zzz7nOmb2pHHM2ZuctIt8aJf9s-1773658764-1.2.1.1-3pZXgwCOXwzUQSaQqc23Af5aU3MEWQ.Q2iyazKcwmQHQLFeTvr4zW16sDgzbYTQZOCSd4T7eCz8.c_Khwgs0fm2meHPGkZQkg64nNK6vv.HJGWE0XnKdUFfsqym52TQh7yDrty0nqiBf88MsKmNlXGhamc2Mqcxa53Nt6gcoArt5NkZ_TaAkmexIMBJu47V51YYcw26sRKpft8UJbCUXr9bsRhu5XlyKRcTvyVA9e0k

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
Content-Security-Policy default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
Strict-Transport-Security max-age=3600; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

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.

analytics.ietf.org
datatracker.ietf.org
static.ietf.org
tools.ietf.org
104.16.44.99
104.16.45.99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