CONTINUOUS INTERNET TELEMETRY24H DRIFT64,140 material changesacross 60,105 domains · last 24h · +29,523 vs yesterdayROTATION57 domains moved DNS from magpiedns.com to koaladns.com, 57 moved backa rotation loop, not a migration · 24hNOW537 curated domains not reachablelast probe, steadySITE ERRORS33,826 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 133,434 sites429 rate-limit / 403 bot-block, a posture signal

foursquare.com

Observed Aug 2, 2026, 08:06 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of foursquare.com was taken 3d ago

foursquare.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting foursquare.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch foursquare.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Up right now
Runs onFastly
Email byGoogle Workspace
Secured byLet's Encrypt
Registered withGandi SAS
Also usesAtlassianDocuSignFacebook/MetaGoogle Search Console
tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat foursquare.com actually stands on - every host below is a signed observation
foursquare.com
A / AAAA
151.101.2.132151.101.194.132151.101.130.132151.101.66.132
Fastlyserves the site
NS
ns-1013.awsdns-62.netns-1360.awsdns-42.orgns-1758.awsdns-27.co.ukns-91.awsdns-11.com
awsdns-62.net + awsdns-42.org + moreanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
foursquare.com
Let's Encryptissued its certificate

DNS Records

A 4

  • 151.101.2.132
  • 151.101.194.132
  • 151.101.130.132
  • 151.101.66.132

MX 5

  • 10aspmx.l.google.com
  • 20alt1.aspmx.l.google.com
  • 20alt2.aspmx.l.google.com
  • 30aspmx2.googlemail.com
  • 30aspmx3.googlemail.com

TXT 20

  • anthropic-domain-verification-4q9j3t=uva3foyRKaNIaogV5tzwICKH7
  • apple-domain-verification=K9xP4O3Kf2AWcoL6
  • atlassian-domain-verification=nLNEa/3YX8+FCe4Er7wL2BjSgjDkzeS+Y1dJzIFh48F9oPFFygKek1Sg4Nzl0czw
  • cursor-domain-verification-4sk5a7=XY3UPRnnlpUU8idlDUHZfVnqQ
  • docusign=c677b60e-d213-4c83-a2ea-8939ce46d114
  • facebook-domain-verification=fkxskr1vbb3jdk14iaytmo5k0so3wq
  • google-site-verification=MZDqZ6YFs43PB8rFIrsEMeH7FF16FBHS7PqB_-xfoxQ
  • google-site-verification=S8eMmX7gV97qABWx7R0eRpfzLXwdY895N-ABXbm758Y
  • google-site-verification=VoTcCzdSA8qmNbg_CumbTrAGczCGq5f9LNjUgHctqzQ
  • google-site-verification=k83L0vAR4o6gacvlkNSG70uIH33Ttvwk04eVOS7GNLs

NS 4

  • ns-1013.awsdns-62.net
  • ns-1360.awsdns-42.org
  • ns-1758.awsdns-27.co.uk
  • ns-91.awsdns-11.com

SOA 1

  • ns-1758.awsdns-27.co.uk hostmaster.foursquare.com

SRV 5

  • alt1.xmpp-server.l.google.com:5269 p20
  • alt2.xmpp-server.l.google.com:5269 p20
  • alt3.xmpp-server.l.google.com:5269 p20
  • alt4.xmpp-server.l.google.com:5269 p20
  • xmpp-server.l.google.com:5269 p5

CAA 7

  • issue "amazon.com"
  • issue "amazonaws.com"
  • issue "amazontrust.com"
  • issue "awstrust.com"
  • issue "certainly.com"
  • issue "digicert.com"
  • issue "letsencrypt.org"

DMARC_RECORDS 1

  • v=DMARC1; p=none; rua=mailto:dmarc@foursquare.com,mailto:qky6z0bh@ag.dmarcian.com,mailto:dmarc_agg@vali.email;

TLS Certificates (3)

Common NameIssuerExpires
foursquare.com C=US, O=Let's Encrypt, CN=YR1 Wed, 16 Sep 2026 22:33:04 +0000
YR1 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR 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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_79b7d7899e2bd76d
Output Hash
71dca993dc82bca4686f623fd677cf01c88dfd1d3d648574e07e70fee2048552
Signature
ed25519:2a5edf2a9320c7f5fb79334412877aa671d6bf52e05dde136af873867ace9b7f4f22e37b3dae2174fd695ee5b0b24e2e5f116c1724133ed499559acb5886e105
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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