stepik.org

Observed 2026-07-12T07:56:21.400Z (23h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle (SPF sender)

Registered withGoDaddy.com, LLC

Also usesGoogle Search Console

tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat stepik.org actually stands on - every host below is a signed observation

stepik.org

A / AAAA

178.248.239.111

Cloudflareserves the site

ns77.domaincontrol.comns78.domaincontrol.com

domaincontrol.comanswers its DNS

mx.yandex.net

Google (SPF sender)receives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time978 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

178.248.239.111

MX 1

10mx.yandex.net

TXT 7

yandex-verification: fa6a64e3034dc7b7
MS=ms61610138
google-site-verification=F1_-uKpAc4KyTYHV6Ft_QOkSrfzPgyy_cv3Vw_hc7qc
yandex-verification: a4dbed4d96915f29
v=spf1 mx ip4:40.113.130.203 ip4:51.250.53.246 ip4:40.119.132.203 ip4:104.47.158.169 include:mail.zendesk.com include:servers.mcsv.net include:_spf.google.com include:_spf.myjetbrains.com include:_spf.yandex.net ~all
v=DMARC1;p=none;rua=mailto:dmarc@stepik.org
v=DKIM1; (detected)

NS 2

ns77.domaincontrol.com
ns78.domaincontrol.com

SOA 1

ns77.domaincontrol.com dns.jomax.net

TLS Certificates (0)

None.

Subdomains (12)

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 stepik.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: bab4ea6d-f314-4127-97c3-be303b8c6f4f
Output Hash: d4389dc5fc25b71df1a6d585a431afd547c23a7ac35e477d28c4b4db5587eda9
Signature: ed25519:80df49bd6fa8232d2f56d462d542da9ddcfd89d92b8121b9eefd69c5226d2ba572cf31c7313b82abb1192f812f8ceaf4a7cf6a52faaac09cc30617e4c66b410b
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/stepik.org