(301 Moved Permanently) 301 Moved Permanently
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Host record
Location
| Organization | Cloudflare, Inc. |
|---|---|
| ISP | Cloudflare, Inc. |
| ASN | 13335 |
Products & Technologies
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http
https
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Bonfire
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Floating UI
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Inertia.js
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Web frameworks
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Admin Console
| Last Seen | 2026-10-12 11:04:53 |
|---|
| Domain | IP Address | PTR | TLD | CDN |
|---|---|---|---|---|
| ycombinator.com | 104.20.46.159 | - | com | Cloudflare |
DNS Records
A
172.66.144.64
104.20.46.159
CNAME
signatures.ycombinator.com.cdn.cloudflare.net.
Open Ports
80
http
( 301
Moved Permanently )
301 Moved Permanently
Product
CloudFlare
Technologies
Cloudflare
301 Moved Permanently
Cf-Cache-Status:DYNAMIC
Cf-Ray:a4959b960a64ab94-YYZ
Connection:keep-alive
Content-Length:134
Content-Type:text/html
Date:Mon, 12 Oct 2026 11:01:39 GMT
Location:https://signatures.ycombinator.com:443/
Server:cloudflare
443
https
( 200
OK )
Sign Document — Y Combinator
Product
CloudFlare
Technologies
Bonfire
CodeIgniter
Cloudflare
HSTS
Inertia.js
Floating UI
Invision Power Board
PHP
MySQL
IPB
Lodash
Prototype
React
Sentry
Spin.js
Tailwind CSS
200 OK
Cache-Control:max-age=0, private, must-revalidate
Cf-Cache-Status:DYNAMIC
Cf-Ray:a4959b968a59de44-YYZ
Content-Security-Policy:frame-ancestors 'none'
Content-Type:text/html; charset=utf-8
Cross-Origin-Opener-Policy:same-origin
Date:Mon, 12 Oct 2026 11:01:39 GMT
Etag:W/"39ee2bbd3e8258b8754ec7eb870038fd"
Link:<https://bookface-static.ycombinator.com/vite/assets/configure-zod-CvSwb0W3.js>; rel=modulepreload; as=script; crossorigin=; nopush,<https://bookface-static.ycombinator.com/vite/assets/tailwind-Cc2jBQ5u.js>; rel=modulepreload; as=script; crossorigin=; nopush,<https://bookface-static.ycombinator.com/vite/assets/tailwind-BG5GedqN.css>; rel=preload; as=style; crossorigin=; nopush,<https://bookface-static.ycombinator.com/vite/assets/avenir-gxVq0yOM.css>; rel=preload; as=style; crossorigin=; nopush,<https://bookface-static.ycombinator.com/vite/assets/signing-CtMCGUKJ.js>; rel=modulepreload; as=script; crossorigin=; nopush,<https://bookface-static.ycombinator.com/vite/assets/signature-fo
8080
tcp
8443
http
( 400
Bad Request )
400 The plain HTTP request was sent to HTTPS port
Product
CloudFlare
Technologies
Cloudflare
400 Bad Request
Cf-Ray:-
Content-Length:655
Content-Type:text/html
Date:Mon, 12 Oct 2026 11:01:38 GMT
Server:cloudflare
TLS/SSL Cert
443
Subject:ycombinator.com
SAN (DNS):*.ycombinator.com, ycombinator.com
Issuer:YE2 · Let's Encrypt · US
Issuer DN:CN=YE2,O=Let's Encrypt,C=US
Served By:104.20.46.159:443
Signature Algorithm:ECDSA-SHA384
Issued On:03-09-2026 14:35:56
Expires On:02-12-2026 14:35:55
SHA256:12:4E:DD:AB:1C:68:CD:50:DE:F3:9C:7F:E3:A0:AF:C0:84:40:29:7F:49:7F:69:90:A9:B6:0E:BF:D3:38:F9:5E
SHA1:67:FE:A4:6E:FF:1E:EA:03:E7:6F:9A:A2:40:80:3F:F5:0D:F4:39:76
MD5:35:F5:26:27:00:F2:CF:A3:11:42:96:C9:59:75:22:C3
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