CONTINUOUS INTERNET TELEMETRY24H DRIFT600 material changesacross 516 domains · -58 vs yesterdayDNS DRIFT2 domains changed DNS providertop destination kirklanddc.comCERT DRIFT2 domains switched issuing CA24hNOW2,935 curated domains not answering+106 vs yesterdayERRORS19,615 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED52,727 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT600 material changesacross 516 domains · -58 vs yesterdayDNS DRIFT2 domains changed DNS providertop destination kirklanddc.comCERT DRIFT2 domains switched issuing CA24hNOW2,935 curated domains not answering+106 vs yesterdayERRORS19,615 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED52,727 throttled or blocked our scanner429 rate-limit / 403 bot-block

yammer.com

Observed Jul 18, 2026, 12:43 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onMicrosoft Corporation
Email byMicrosoft 365
Secured byMicrosoft
Registered withMarkMonitor Inc.
Also usesGoogle Search Console
1 subdomain · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yammer.com actually stands on - every host below is a signed observation
yammer.com
A / AAAA
150.171.73.13150.171.74.13
Microsoft Corporationserves the site
NS
ns1-01.azure-dns.comns2-01.azure-dns.netns3-01.azure-dns.orgns4-01.azure-dns.info+6 more
azure-dns.com + azure-dns.net + moreanswers its DNS
MX
yammer-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
*.yammer.com
Microsoft Corporationissued its certificate

DNS Records

A 2

  • 150.171.73.13
  • 150.171.74.13

MX 1

  • 10yammer-com.mail.protection.outlook.com

TXT 4

  • MS=ms97340800
  • google-site-verification=-Q7HmtzaJ5ho3-_EWV5dsb9SvqduEwS5Sz-w4Ag3K0U
  • v=spf1 include:spf.protection.outlook.com include:mailiespf.yammer.com mx include:_spf-ssg-a.microsoft.com -all
  • v=DMARC1; p=quarantine; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1

NS 10

  • ns1-01.azure-dns.com
  • ns2-01.azure-dns.net
  • ns3-01.azure-dns.org
  • ns4-01.azure-dns.info
  • a1-115.akam.net
  • a16-66.akam.net
  • a18-67.akam.net
  • a28-64.akam.net
  • a5-65.akam.net
  • a9-66.akam.net

SOA 1

  • ns1-01.azure-dns.com ops.yammer-inc.com

CAA 3

  • issue "microsoft.com"
  • issue "digicert.com"
  • contactemail "caarecordaware@microsoft.com"

TLS Certificates (3)

Common NameIssuerExpires
*.yammer.com C=US, O=Microsoft Corporation, CN=Microsoft TLS G2 RSA CA OCSP 10 Sun, 29 Nov 2026 18:44:29 +0000
Microsoft TLS G2 RSA CA OCSP 10 C=US, O=Microsoft Corporation, CN=Microsoft TLS RSA Root G2 Sun, 03 Jun 2029 20:03:03 +0000
Microsoft TLS RSA Root G2 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Tue, 19 Jun 2029 23:59:59 +0000

Subdomains (1)

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 yammer.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
55cb550c-a001-45f7-8a8b-fd7c5427b522
Output Hash
eeb63a2d8da79c11116215c783366583e427c634599dc019ded7356ea5329275
Signature
ed25519:7649e139003da3c4f9e0c593e60157c9f1d09a5127dce0c5b0c56aa21d5cbf0342d762b40c0036346de030adb35580e6846cfdd9df89682f282245b194ac2b0f
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser