CONTINUOUS INTERNET TELEMETRY24H DRIFT3,243 material changesacross 2,868 domains · -155 vs yesterdayDNS DRIFT23 domains changed DNS providertop destination cloudflare.com · -4 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination 365cool.com · -1 vs yesterdayCERT DRIFT7 domains switched issuing CA24hNOW3,306 curated domains not answering-6,412 vs yesterdayERRORS10,964 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT3,243 material changesacross 2,868 domains · -155 vs yesterdayDNS DRIFT23 domains changed DNS providertop destination cloudflare.com · -4 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination 365cool.com · -1 vs yesterdayCERT DRIFT7 domains switched issuing CA24hNOW3,306 curated domains not answering-6,412 vs yesterdayERRORS10,964 responded with an errorlast probe · 5xx / 404 / 429 / 403

yc.com

Observed 2026-07-13T00:15:41.802579553+00:00 (8h ago). Every field below was attested with an Ed25519 signature at scan time.

Responding, no home page
Runs onCloudflare
Secured byLet's Encrypt
Registered withTucows Domains Inc.
IPv6 · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yc.com actually stands on - every host below is a signed observation
yc.com
A / AAAA
172.67.219.248104.21.62.452606:4700:3036::6815:3e2d2606:4700:3036::ac43:dbf8
Cloudflareserves the site
NS
haley.ns.cloudflare.comshane.ns.cloudflare.com
cloudflare.comanswers its DNS
TLS
yc.com
Let's Encryptissued its certificate

DNS Records

A 2

  • 172.67.219.248
  • 104.21.62.45

AAAA 2

  • 2606:4700:3036::6815:3e2d
  • 2606:4700:3036::ac43:dbf8

TXT 2

  • v=spf1 -all
  • v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

NS 2

  • haley.ns.cloudflare.com
  • shane.ns.cloudflare.com

SOA 1

  • haley.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common NameIssuerExpires
yc.com C=US, O=Let's Encrypt, CN=YE1 Mon, 28 Sep 2026 00:19:30 +0000
YE1 C=US, O=ISRG, CN=Root YE Sat, 02 Sep 2028 23:59:59 +0000
Root YE C=US, O=Internet Security Research Group, CN=ISRG Root X2 Thu, 02 Sep 2032 23:59:59 +0000
ISRG Root X2 C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for yc.com. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for yc.com <a href="https://domaindrift.io/t/yc.com"> <img src="https://domaindrift.io/badge/yc.com.svg" width="300" height="64" alt="DomainDrift signed observations for yc.com"> </a>

Ed25519 Receipt

Receipt ID
ca280e9f-f2fd-4a35-bc65-911b6150c440
Output Hash
cec5d61052e8d2e16f517b14dff76f667713eb3552f57489502fb7339540268d
Signature
ed25519:27845fc6026ea2cb76bd38f72f09596afef0b6340979039a001b09bbb860e99a5b710b4d2889d1a740921fb9c48b59c3c528f07e6538f38acf1810b8705d610f
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser