extendoffice.com
Observed Jul 21, 2026, 17:41 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.
Up right now
Email byAmazon SES
Secured bySectigo
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat extendoffice.com actually stands on - every host below is a signed observation
extendoffice.com
A / AAAA
3.162.112.723.162.112.763.162.112.673.162.112.57
unattributedserves the site
NS
ns-1413.awsdns-48.orgns-1588.awsdns-06.co.ukns-633.awsdns-15.netns-97.awsdns-12.com
awsdns-48.org + awsdns-06.co.uk + moreanswers its DNS
MX
inbound-smtp.us-east-1.amazonaws.com
Amazon SESreceives its email
TLS
*.extendoffice.com
Sectigo Limitedissued its certificate
DNS Records
A 4
3.162.112.723.162.112.763.162.112.673.162.112.57
MX 1
10inbound-smtp.us-east-1.amazonaws.com
TXT 2
v=spf1 include:amazonses.com -allv=DMARC1; p=none; adkim=r; aspf=r; fo=1; rua=mailto:dmarc-reports@extendoffice.com; ruf=mailto:dmarc-forensics@extendoffice.com
NS 4
ns-1413.awsdns-48.orgns-1588.awsdns-06.co.ukns-633.awsdns-15.netns-97.awsdns-12.com
SOA 1
ns-97.awsdns-12.com awsdns-hostmaster.amazon.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
*.extendoffice.com |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36 | Mon, 09 Nov 2026 23:59:59 +0000 |
USERTrust RSA Certification Authority |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 18 Jan 2038 23:59:59 +0000 |
Sectigo Public Server Authentication Root R46 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 18 Jan 2038 23:59:59 +0000 |
Sectigo Public Server Authentication CA DV R36 |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 | Fri, 21 Mar 2036 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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_fe57775ebdc7372f- Output Hash
8c1c27ba485d9666741e87d207595f57ec87ee0f88625141fe0737973506fa52- Signature
ed25519:818c67e362fd944b0b50b055d39c1b85ab6ff70be2c526a39efcc6b49ffb17bb7a932c93d0a3e658b24121d3f90aa55f20e4abe962f2195fa69b2be858a78c0a- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast