offerup.com
Observed Jul 21, 2026, 19:40 UTC (1d 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
Runs onCloudflare
Email byMimecast
Secured byGoogle Trust Services
Registered withGoDaddy Corporate Domains, LLC
Also usesDocuSignMiroGoogle Search ConsoleNotionStripeAtlassianHubSpot
1 subdomain · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat offerup.com actually stands on - every host below is a signed observation
offerup.com
A / AAAA
104.18.35.135172.64.152.121
Cloudflareserves the site
NS
jobs.ns.cloudflare.comalice.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
offerup.com
Google Trust Servicesissued its certificate
DNS Records
A 2
104.18.35.135172.64.152.121
MX 2
10us-smtp-inbound-1.mimecast.com20us-smtp-inbound-2.mimecast.com
TXT 26
ca3-8df4be0ad13745aa9ef439289e8ae1f69093I5UQKN08X29QY7AE6UQ9W88B33VIMC451K2Capple-domain-verification=tYwCt9OkeL8Tn5k7docusign=a462f2f5-daf8-480d-9c4e-311969327370canva-site-verification=GKJIvi4dEF0x-vFr1onHNAbitrise-verification=60104fbb2c50a4ee-Smk86DjFrseVgc-ai-domain-verification-hsanvs=bNZgRbCTaMLnElsWCYoCTSkzOmiro-verification=762bd1f2a72a80883a076caf8b4f94d813353f6fanthropic-domain-verification-8gm7j1=7UEJ5jpBLrg0BYZUGu3RkNcXGlogmein-verification-code=82baad1e-7e1e-465c-9428-50243b1f2b7a
NS 2
jobs.ns.cloudflare.comalice.ns.cloudflare.com
SOA 1
alice.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
offerup.com |
C=US, O=Google Trust Services, CN=WE1 | Mon, 19 Oct 2026 18:58:41 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +0000 |
Subdomains (1)
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_0d2e68c649e30b74- Output Hash
f6a9a77991f26a4f4108e4d4abfb63f6ec6a7ee6796f6421f8907ebeb80416f7- Signature
ed25519:835aab03074369fdd0e756c9e0c28fae723f11ceb953bdc46aa999dfd77c034ec84271842f70da6eda20e5cd723b3c60aaf9dc9c912457e89f10234bf27edb02- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast