regeneron.com

Observed Jul 28, 2026, 17:38 UTC (15h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byProofpoint

Secured bySectigo

Registered withMarkMonitor Inc.

Also usesAtlassianGoogle Search Console

1 subdomain · pharma_biotech

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

INFRASTRUCTURE MAPwhat regeneron.com actually stands on - every host below is a signed observation

regeneron.com

A / AAAA

209.235.68.11

Cloudflareserves the site

ns6.markmonitor.comns4.markmonitor.comns1.markmonitor.comns2.markmonitor.com+3 more

markmonitor.comanswers its DNS

mxa-002cca01.gslb.pphosted.commxb-002cca01.gslb.pphosted.com

Proofpointreceives its email

TLS

regeneron.com

Sectigo Limitedissued its certificate

DNS Records

A 1

209.235.68.11

MX 2

10mxa-002cca01.gslb.pphosted.com
10mxb-002cca01.gslb.pphosted.com

TXT 33

jamf-site-verification=gywgzghywt0zgojjashm3w
atlassian-domain-verification=XLah2u98gl0ibCq9DAxB3adMigqbUht2cWSwF1hBWQhGbPdYgFFEmg/Vf09Qw0oT
autodesk-domain-verification=8pGGLWSt7cWYGlF8IfSt
google-site-verification=ybfekkx9bjhlqip71h8pqd43k5vp9lw4qvfewcn-udi
ms=ms96000398
onetrust-domain-verification=8f9d1c676cff423f830b54b7f8f9908a
nintex.608afeda6bc4420069b42c2f
remarkable-domain-verification=a02ebab4-331c-45e4-a16b-4f4e9ba27355
apple-domain-verification=wxajfqy85wnbhasl
antibodypicker _k1kg1w63rxbfat5p0yuo42cr1dof2jm

NS 7

ns6.markmonitor.com
ns4.markmonitor.com
ns1.markmonitor.com
ns2.markmonitor.com
ns7.markmonitor.com
ns3.markmonitor.com
ns5.markmonitor.com

SOA 1

ns1.markmonitor.com hostmaster.markmonitor.com

SRV 6

tarctexpe01p.regeneron.com:5060 p10
renctexpe01p.regeneron.com:5060 p10
renctexpe01p.regeneron.com:5061 p10
tarctexpe01p.regeneron.com:5061 p10
join.regeneron.com:5222 p0
join.regeneron.com:5269 p0

TLS Certificates (2)

Common Name	Issuer	Expires
`regeneron.com`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R36	Sun, 11 Oct 2026 23:59:59 +0000
`Sectigo Public Server Authentication CA OV R36`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46	Fri, 21 Mar 2036 23:59:59 +0000

Subdomains (1)

www.regeneron.com

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

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

Ed25519 Receipt

Receipt ID: rcpt_a5d14b0e3442e89a
Output Hash: 0cd733d349dd9841e5ba4dd93dc804c7ade8c9f5abfe999ede864d08bb0879b2
Signature: ed25519:648929b6c0efd9b19408cd1d9a05bc608a2509283a58cd5c39ef8d8373dc35b2bd2ec376fba647feca5a2b93e76c0def41678e5f8474261f726ed8ee3e775100
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/regeneron.com