regeneron.com

Observed Jul 24, 2026, 02:41 UTC (6h 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

ns1.markmonitor.comns2.markmonitor.comns3.markmonitor.comns4.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

pendo-domain-verification=PXaD0xYOKw9ad3wFLyYc4b7JDsc
wtfsq@dxc%zcxrkgvzaxjmdzxim&wa5##t8w8x9v^rwbsegou!2cm5srmuvg*ye#j#j72tfsq7l4tieyx^cxbs3unuaf9mwaesb
00D36000000angI=1TBTN000000012X
1/5+wreamc9jhtpn2tt8hmk5udoop1t5wm1nqocs0lsq27dsbnqqll+h8fx1tjm+ycqfwv8s0kwfwjyyxkev0q==
stratosphere-site-verification=DWuhYqBWgCQ2oo7E9CnriOHtZvSDUo41ZNkDZjjJDw144ldojhyR41vkhMYweCldpEwRKR3i3apgLfkrCNqWwQ==
access-domain-verification=5891e1236b1b43315d6c556ac415660c35adc62b0e7cfe7dca6ec791004bcc68
jamf-site-verification=gywgzghywt0zgojjashm3w
box-domain-verification=77ea0e929264482bdb9a50f3372601e5c1902ea72e5c1d2a577bf071b139d9bc
ms=ms96000398
adobe-sign-verification=9ffc37a3a0d8d72957e407da170c93cd

NS 7

ns1.markmonitor.com
ns2.markmonitor.com
ns3.markmonitor.com
ns4.markmonitor.com
ns5.markmonitor.com
ns6.markmonitor.com
ns7.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: rcpt_f5fa315c77698222
Output Hash: 7fd6e96389778c7f3254881c18e41f2da2970151691311dd1c364d20fef95195
Signature: ed25519:eb55b82b328d529035595e9968b739ce841141df5d863d0ec966335407403b09132976f48d759ac893d00185574d3a6f827fc5e8681c0cff9ec16f6214464701
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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