regeneron.com

Observed Jul 18, 2026, 12:03 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byProofpoint

Secured bySectigo

Registered withMarkMonitor Inc.

Also usesGoogle Search ConsoleAtlassian

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

ns3.markmonitor.comns5.markmonitor.comns6.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

ms=ms96000398
00D36000000angI=1TBTN000000012X
00DWV00000CKNnx=1TBWy000000051J
00Dba000002PzDf=1TBba000000079Z
nintex.608afeda6bc4420069b42c2f
apple-domain-verification=wxajfqy85wnbhasl
jamf-site-verification=gywgzghywt0zgojjashm3w
antibodypicker _k1kg1w63rxbfat5p0yuo42cr1dof2jm
autodesk-domain-verification=8pGGLWSt7cWYGlF8IfSt
bluebeam-verification=mvgphijztl4na8iwqkf4fv1mkq4wjb

NS 7

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

SOA 1

ns1.markmonitor.com hostmaster.markmonitor.com

SRV 6

tarctexpe01p.regeneron.com:5060 p10
renctexpe01p.regeneron.com:5060 p10
tarctexpe01p.regeneron.com:5061 p10
renctexpe01p.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: b034a6f1-c603-4693-aae6-150c193b21ed
Output Hash: 6534daf01e64cea152441d3f14675b829a9f70f6241e360ec8b5cf20a0da8b0c
Signature: ed25519:6a583685fb45e7a1d58523407d168ed47b088af4c126127cb8d629088ac9db92d300a3148bdbd2fd13d3cc090e10c02048699330873f1a96dcf96b1d27c57b0a
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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