mersen.com

Observed Aug 12, 2026, 04:33 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of mersen.com was taken 3d ago

mersen.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mersen.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 mersen.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Email byProofpoint
Secured byLet's Encrypt
Also usesDocuSignAppleGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat mersen.com actually stands on - every host below is a signed observation
mersen.com
A / AAAA
151.101.66.216151.101.130.216151.101.194.216151.101.2.216
unattributedserves the site
NS
ns1.eurodns.comns2.eurodns.comns3.eurodns.comns4.eurodns.com
eurodns.comanswers its DNS
MX
mx0a-00115902.pphosted.commx0b-00115902.pphosted.com
Proofpointreceives its email
TLS
mersen.com
Let's Encryptissued its certificate

DNS Records

A 4

  • 151.101.66.216
  • 151.101.130.216
  • 151.101.194.216
  • 151.101.2.216

MX 2

  • 10mx0a-00115902.pphosted.com
  • 20mx0b-00115902.pphosted.com

TXT 10

  • d34LVXaALni/5I4ruc3ao3edTFlxPm30RM9PWkuOcGp2a6zVXk4lwy5Vlv6ZUFNfNj7aEhJeSv+V3XzUt0ybjg==
  • docusign=a828c1ff-e376-4ae0-8b5a-c9c24a35ccb5
  • docusign=943ffae8-95c3-47c8-b91c-7c7ba709c439
  • apple-domain-verification=H84ZLTv0WRuO4DYg
  • google-site-verification=i6gaJZgfMGy6-gg5kDVXr5PmSzVeYgpMD1g3ndNosyY
  • v=spf1 a:mersen.com include:spf.protection.outlook.com include:spf-00115902.pphosted.com include:sendgrid.net include:em6876.mersen.com a:sd-87888.mersen.com ip4:164.138.243.213 ip4:170.207.37.144 ip4:170.207.37.145 ip4:98.85.207.89 ip4:44.194.142.81 ip4:44.235.179.233 ip4:44.245.65.175 ip4:51.159.100.201 ip4:149.72.227.54 ip4:213.162.32.117 ip4:3.123.206.219 ip4:3.68.129.51 ip4:35.181.156.191 ip4:13.36.253.151 ip4:85.158.120.0/24 ~all
  • brevo-code:01f42ac63d0d9c10583ec16572fc01cb
  • google-site-verification=Y55G4ctbZV4dzBNBNC1A9djA_ufctm5eTCENLEkBcYU
  • google-site-verification=3T3pj0ul5ZT4SA3t4ZwIcRzwh-IY2elDY132brgQLt0
  • cefa0a3394aae5aba84ddf3d8ccc7741f22e1ca527c5da0633

NS 4

  • ns1.eurodns.com
  • ns2.eurodns.com
  • ns3.eurodns.com
  • ns4.eurodns.com

SOA 1

  • ns1.eurodns.com hostmaster.eurodns.com

DMARC_RECORDS 1

  • v=DMARC1; p=reject; sp=reject; pct=100;aspf=r;adkim=r;rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_agg@vali.email;

TLS Certificates (3)

Common NameIssuerExpires
mersen.com C=US, O=Let's Encrypt, CN=YR1 Sun, 01 Nov 2026 19:28:33 +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_6aab6bfa8d5234c8
Output Hash
bf58bb83003484a6678baebc41e55f6e883c9d10695a33825ea53d6815e4ac79
Signature
ed25519:7d895f3f1e63ba2d87af0df1112dd89960c8a5bfed6266027abf55aad09ea932384a847e2428671902ef394e2d33a5fbd80a423cec93b36ef82a316fcb0cc000
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT40,006 material changesacross 38,443 domains · 24h to ~3h ago · -4,076 vs yesterdayROTATION61 domains moved DNS from koaladns.com to magpiedns.com, 61 moved backa rotation loop, not a migration · 24hNOW489 curated domains not reachablelast probe, steadySITE ERRORS36,543 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,294 sites429 rate-limit / 403 bot-block, a posture signal