xkcd.com
Observed 2026-07-13T22:21:44.837Z (4h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withGoDaddy.com, LLC
IPv6 · 6 subdomains · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat xkcd.com actually stands on - every host below is a signed observation
xkcd.com
A / AAAA
151.101.128.67151.101.64.67151.101.192.67151.101.0.67+4 more
Cloudflareserves the site
NS
ns-cloud-d3.googledomains.comns-cloud-d4.googledomains.comns-cloud-d1.googledomains.comns-cloud-d2.googledomains.com
googledomains.comanswers its DNS
MX
aspmx4.googlemail.comaspmx2.googlemail.comaspmx5.googlemail.comaspmx.l.google.com+3 more
Google Workspacereceives its email
HTTPS probe
ok
Responding normally (2xx) 200 OK
HTTP status200
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time154 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 4
151.101.128.67151.101.64.67151.101.192.67151.101.0.67
AAAA 4
2a04:4e42:400::672a04:4e42::672a04:4e42:200::672a04:4e42:600::67
MX 7
30aspmx4.googlemail.com30aspmx2.googlemail.com30aspmx5.googlemail.com10aspmx.l.google.com30aspmx3.googlemail.com20alt1.aspmx.l.google.com20alt2.aspmx.l.google.com
TXT 3
v=spf1 include:_spf.google.com include:mailgun.org ~allv=DMARC1; p=none; rua=mailto:dmarc_reports@xkcd.com; ruf=mailto:dmarc_reports@xkcd.com; fo=1; adkim=s; aspf=s;v=DKIM1; (detected)
NS 4
ns-cloud-d3.googledomains.comns-cloud-d4.googledomains.comns-cloud-d1.googledomains.comns-cloud-d2.googledomains.com
SOA 1
ns-cloud-d1.googledomains.com cloud-dns-hostmaster.google.com
CAA 3
issuewild globalsign.comissue letsencrypt.orgissue globalsign.com
TLS Certificates (0)
None.
Subdomains (6)
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
57887468-af73-4dcd-82ef-b18a4a0ad49e- Output Hash
fe6d1822367bd7ce02e1f6531cd4a315ead39909e287f1f423012006e4286d2f- Signature
ed25519:c262c085d9345618173489e8169bb75a105715a240f54eff9bde2bc8571b10688d199e1b7020400fc55013301422a0ed62fcddbe51a02998d472575f1540cb07- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast