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

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Submitted URL:
http://mta-sts.alpo.tf/ 4yr old
Effective URL:
https://datatracker.ietf.org/doc/html/rfc8461 9yr old
Submission: On March 08 via api (March 8th 2026, 7:58:50 pm UTC) from US — Scanned from FR

Summary HTTP 21 Redirects Links 35 Behaviour Indicators

Summary

This website contacted 3 IPs in 2 countries across 2 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 January 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
1 1	82.64.31.248 82.64.31.248	12322 (PROXAD Fr...) (PROXAD Free SAS)
1 10	104.16.45.99 104.16.45.99	13335 (CLOUDFLAR...) (CLOUDFLARENET - Cloudflare)
1 13	104.16.44.99 104.16.44.99	13335 (CLOUDFLAR...) (CLOUDFLARENET - Cloudflare)
21	3

1 82.64.31.248 (France) 1 redirects

ASN12322 (PROXAD Free SAS, FR)
PTR: 82-64-31-248.subs.proxad.net

mta-sts.alpo.tf 4yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

10 104.16.45.99 (Ascension Island) 1 redirects

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)

tools.ietf.org 13yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools
static.ietf.org 3yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools
analytics.ietf.org 6yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

13 104.16.44.99 (Ascension Island) 1 redirects

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)

datatracker.ietf.org 9yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools
static.ietf.org 3yr old	Domain lookup VirusTotal SecurityTrails crt.sh Domaintools

	Apex Domain Subdomains	Transfer
23	ietf.org 2 redirects 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	471 KB
1	alpo.tf 1 redirects mta-sts.alpo.tf 4yr old	296 B
21	2

	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
1	mta-sts.alpo.tf	1 redirects
21	5

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

Domain
www.rfc-editor.org
mailarchive.ietf.org
github.com
trustee.ietf.org
mta-sts.provider.example

Subject Issuer	Validity	Valid
ietf.org E8	`2026-01-11` - `2026-04-11`	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/rfc8461
Frame ID: A1D6554D2D1F41A5BB850E11CCD7D2AD
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: 2692C89EBC737A5E1B732C386A750CB3
Requests: 2 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

RFC 8461 - SMTP MTA Strict Transport Security (MTA-STS)

Page URL History Show full URLs

http://mta-sts.alpo.tf/ HTTP 307
https://mta-sts.alpo.tf/ HTTP 302
https://tools.ietf.org/html/rfc8461 HTTP 301
https://datatracker.ietf.org/doc/html/rfc8461 Page URL

Detected technologies

Vue.js (JavaScript frameworks) Expand

Overall confidence: 100%
Detected patterns

<(?!svg)[^>]+\sdata-v(?:ue)?-

Cloudflare Bot Management (Security) Expand

Overall confidence: 100%
Detected patterns

Page Statistics

21
Requests

95 %
HTTPS

0 %
IPv6

2
Domains

5
Subdomains

3
IPs

2
Countries

471 kB
Transfer

1285 kB
Size

2
Cookies

35 Outgoing links

These are links going to different origins than the main page.

URL: https://www.rfc-editor.org/errata_search.php?rfc=8461
Title: View errata

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/errata.php#reportnew
Title: Report errata

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/rfc8461.txt
Title: txt

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/rfc8461.html
Title: html

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/pdfrfc/rfc8461.txt.pdf
Title: pdf

Search URL Search Domain Scan URL

URL: https://mailarchive.ietf.org/arch/browse/uta/?q=rfc8461%20OR%20%22draft-ietf-uta-mta-sts%22
Title: Mailing list discussion

Search URL Search Domain Scan URL

URL: https://github.com/ietf-tools/datatracker/issues/new/choose
Title: Report a bug

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc8461
Title: https://www.rfc-editor.org/info/rfc8461

Search URL Search Domain Scan URL

URL: https://trustee.ietf.org/license-info
Title: https://trustee.ietf.org/license-info

Search URL Search Domain Scan URL

URL: https://mta-sts.provider.example/
Title: https://mta-sts.provider.example

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc2119
Title: https://www.rfc-editor.org/info/rfc2119

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc2818
Title: https://www.rfc-editor.org/info/rfc2818

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc3207
Title: https://www.rfc-editor.org/info/rfc3207

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc3492
Title: https://www.rfc-editor.org/info/rfc3492

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc3629
Title: https://www.rfc-editor.org/info/rfc3629

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5234
Title: https://www.rfc-editor.org/info/rfc5234

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5246
Title: https://www.rfc-editor.org/info/rfc5246

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5280
Title: https://www.rfc-editor.org/info/rfc5280

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5321
Title: https://www.rfc-editor.org/info/rfc5321

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5785
Title: https://www.rfc-editor.org/info/rfc5785

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc6066
Title: https://www.rfc-editor.org/info/rfc6066

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc6125
Title: https://www.rfc-editor.org/info/rfc6125

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc7405
Title: https://www.rfc-editor.org/info/rfc7405

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc7525
Title: https://www.rfc-editor.org/info/rfc7525

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc8174
Title: https://www.rfc-editor.org/info/rfc8174

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc8446
Title: https://www.rfc-editor.org/info/rfc8446

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc8460
Title: https://www.rfc-editor.org/info/rfc8460

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc4033
Title: https://www.rfc-editor.org/info/rfc4033

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5322
Title: https://www.rfc-editor.org/info/rfc5322

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc5891
Title: https://www.rfc-editor.org/info/rfc5891

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc6818
Title: https://www.rfc-editor.org/info/rfc6818

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc6960
Title: https://www.rfc-editor.org/info/rfc6960

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc7234
Title: https://www.rfc-editor.org/info/rfc7234

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc7672
Title: https://www.rfc-editor.org/info/rfc7672

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/info/rfc8126
Title: https://www.rfc-editor.org/info/rfc8126

Search URL Search Domain Scan URL

Page URL History

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

http://mta-sts.alpo.tf/ HTTP 307
https://mta-sts.alpo.tf/ HTTP 302
https://tools.ietf.org/html/rfc8461 HTTP 301
https://datatracker.ietf.org/doc/html/rfc8461 Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 16

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
1 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H2

200

Primary Request rfc8461 Show response
datatracker.ietf.org/doc/html/
Redirect Chain

http://mta-sts.alpo.tf/
https://mta-sts.alpo.tf/
https://tools.ietf.org/html/rfc8461
https://datatracker.ietf.org/doc/html/rfc8461

147 KB
26 KB

493ms
414ms

Document
text/html

104.16.44.99
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Full URL

https://datatracker.ietf.org/doc/html/rfc8461

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),

Reverse DNS

Software

cloudflare /

Resource Hash

543ea68ed468cba6f7407c5304c5d7a1ddb33c0f3b801de2e85e5855ef4e4d49

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: 9d946abf1cb6ac32-MRS
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: Sun, 08 Mar 2026 19:58:51 GMT
expires: Sun, 08 Mar 2026 23:58:51 GMT
referrer-policy: strict-origin-when-cross-origin
server: cloudflare
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: 9d946abe4c10be8a-MRS
content-length: 167
content-type: text/html
date: Sun, 08 Mar 2026 19:58:50 GMT
expires: Sun, 08 Mar 2026 20:58:50 GMT
location: https://datatracker.ietf.org/doc/html/rfc8461
priority: u=0,i
server: cloudflare
server-timing: cfExtPri
vary: Accept-Encoding
x-robots-tag: noindex, nofollow

GET
H2 200 import.css
static.ietf.org/fonts/inter/ 17 KB
817 B 96ms
45ms Stylesheet
text/css 104.16.44.99
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Full URL: https://static.ietf.org/fonts/inter/import.css
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc8461
Protocol: H2
Security: TLS 1.3, , 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

cache-control: public, max-age=3600
content-encoding: br
cf-cache-status: HIT
etag: W/"7b61f256640b0692a7f9fe4e680aac32"
age: 27150
cf-ray: 9d946ac219dfac32-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/css
last-modified: Tue, 18 Jul 2023 15:35:09 GMT
vary: Accept-Encoding
server: cloudflare

GET
H2 200 import.css
static.ietf.org/fonts/noto-sans-mono/ 20 KB
791 B 99ms
48ms Stylesheet
text/css 104.16.44.99
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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/rfc8461
Protocol: H2
Security: TLS 1.3, , 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

cache-control: public, max-age=3600
content-encoding: br
cf-cache-status: HIT
etag: W/"45c68dabf31645a5242a4febcc3fbb59"
age: 33372
cf-ray: 9d946ac219e1ac32-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/css
last-modified: Tue, 18 Jul 2023 15:41:39 GMT
vary: Accept-Encoding
server: cloudflare

GET
H2 200 document_html_referenced.css
static.ietf.org/dt/12.60.0/ietf/css/ 297 KB
43 KB 153ms
102ms Stylesheet
text/css 104.16.44.99
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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/rfc8461
Protocol: H2
Security: TLS 1.3, , 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

cache-control: public, max-age=3600
content-encoding: br
cf-cache-status: HIT
etag: W/"104485a90b97e2f0d65135aa30b09465"
age: 80822
cf-ray: 9d946ac219e2ac32-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/css
last-modified: Wed, 04 Mar 2026 18:41:06 GMT
vary: Accept-Encoding
server: cloudflare

GET
H2 200 embedded-25f7d50a.js Show response
static.ietf.org/dt/12.60.0/assets/ 16 KB
5 KB 398ms
116ms Script
text/javascript 104.16.45.99
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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/rfc8461
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: 80830
cf-ray: 9d946ac39c2488ed-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/javascript
last-modified: Wed, 04 Mar 2026 18:41:06 GMT
vary: Origin, Accept-Encoding
server: cloudflare

GET
H2 200 create-pinia-singleton-39c6c62d.js Show response
static.ietf.org/dt/12.60.0/assets/ 205 KB
66 KB 384ms
102ms Script
text/javascript 104.16.45.99
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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/rfc8461
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: 80830
cf-ray: 9d946ac39c2288ed-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/javascript
last-modified: Wed, 04 Mar 2026 18:41:06 GMT
vary: Origin, Accept-Encoding
server: cloudflare

GET
H2 200 Scrollbar-bebeb6e9.js Show response
static.ietf.org/dt/12.60.0/assets/ 25 KB
9 KB 383ms
101ms Script
text/javascript 104.16.45.99
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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/rfc8461
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: 80830
cf-ray: 9d946ac39c2388ed-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/javascript
last-modified: Wed, 04 Mar 2026 18:41:06 GMT
vary: Origin, Accept-Encoding
server: cloudflare

GET
H2 200 document_html.js Show response
static.ietf.org/dt/12.60.0/ietf/js/ 251 KB
78 KB 106ms
55ms Script
text/javascript 104.16.44.99
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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/rfc8461
Protocol: H2
Security: TLS 1.3, , 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

cache-control: public, max-age=3600
content-encoding: br
cf-cache-status: HIT
etag: W/"c6b63042063965dd354d0df593b171f4"
age: 80822
cf-ray: 9d946ac219e3ac32-MRS
expires: Sun, 08 Mar 2026 20:58:51 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=86400
date: Sun, 08 Mar 2026 19:58:51 GMT
content-type: text/javascript
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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: 9d946ac5cbf761ee-MRS
accept-ranges: bytes
content-length: 21
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.

2 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 12:30:01	Name: __cf_bm Value: byN067m67_x1WMPqt3PAKqJR6Iv6hqWTVmYdxOjSTWM-1772999930-1.0.1.1-CZc47bWNqdOKhoRnOenFTlRzPAOXeQTH6LPc9zywpOc0GCTOecpjLdlvDVehJXz27aJkaLWaN9CV6UgtPqPZwnV68xCVxnGe0aMMHR8.74Q
			.ietf.org/	1970-01-21 21:15:35	Name: cf_clearance Value: 57Rx2oo5c_I0yY1.jc7yYnIHSLys5yxLXNHLsGBB5Ww-1772999931-1.2.1.1-62ryK5lT8jztJDYtNxwvtinXPYuPsY1u355FYWPTJkpzOPvWBqiA8T5f.uUG5N3.pyPixn9RB417.D9EwDSLclfl2Tn.lR_b9Uo4XEBcOcrHiI22k3IXxJQZBG7cz9bweDKTrfJMhUt07qRObEJUauHxy6_cO6d5xHfUkXXUxBW_Ly6aFdY8UmvlR70xxeH0JKj1qErwlx9_V16gxeSk3lxnsctBEQTxrFq3mo2SsYY

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
mta-sts.alpo.tf
static.ietf.org
tools.ietf.org
104.16.44.99
104.16.45.99
82.64.31.248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datatracker.ietf.org 104.16.44.99 Public Scan Open in urlscan Pro

Summary

urlscan.io Verdict: No classification

Domain & IP information

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Detected technologies

Page Statistics

21 Requests

95 %HTTPS

0 %IPv6

2 Domains

5 Subdomains

3 IPs

2 Countries

471 kBTransfer

1285 kBSize

2 Cookies

35 Outgoing links

Page URL History

Redirected requests

21 HTTP transactions Everything HTML Script Fetch XHR CSS Image Font Expand all 1 data transactions

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Verdicts & Comments Add Verdict or Comment

14 JavaScript Window variables

2 Cookies

Security Headers

Indicators

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

Screenshot
Live screenshot

Full Image

21
Requests

95 %
HTTPS

0 %
IPv6

2
Domains

5
Subdomains

3
IPs

2
Countries

471 kB
Transfer

1285 kB
Size

2
Cookies

21 HTTP transactions
1 data transactions