codehs.com
Observed 2026-07-14T21:44:41.002Z (2d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withMisk.com, Inc.
Also usesGoogle Search ConsoleFacebook/Meta
IPv6 · 11 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat codehs.com actually stands on - every host below is a signed observation
codehs.com
A / AAAA
18.160.143.8318.160.143.11618.160.143.8518.160.143.13+8 more
Cloudflareserves the site
NS
ns-1399.awsdns-46.orgns-720.awsdns-26.netns-387.awsdns-48.comns-1584.awsdns-06.co.uk
awsdns-46.org + awsdns-26.net + moreanswers its DNS
MX
alt2.aspmx.l.google.comaspmx2.googlemail.comalt1.aspmx.l.google.comaspmx.l.google.com+1 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 time1395 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
18.160.143.8318.160.143.11618.160.143.8518.160.143.13
AAAA 8
2600:9000:24ce:b000:f:5b24:f40:93a12600:9000:24ce:1e00:f:5b24:f40:93a12600:9000:24ce:c000:f:5b24:f40:93a12600:9000:24ce:9e00:f:5b24:f40:93a12600:9000:24ce:4200:f:5b24:f40:93a12600:9000:24ce:7000:f:5b24:f40:93a12600:9000:24ce:8400:f:5b24:f40:93a12600:9000:24ce:2c00:f:5b24:f40:93a1
MX 5
5alt2.aspmx.l.google.com10aspmx2.googlemail.com5alt1.aspmx.l.google.com1aspmx.l.google.com10aspmx3.googlemail.com
TXT 6
google-site-verification=06KU-Hatz0C8i_2ps6bakdKQAdnKMjflNVYYOAYI94gv=spf1 a mx include:sendgrid.net include:_spf.google.com include:spf.mailjet.com -allastra-target-verification=5c3847fb2b2a029b4af0facebook-domain-verification=e0s1cawpkw3gxqevpfxwq49pozii75v=DMARC1; p=none; rua=mailto:dmarc@codehs.comv=DKIM1; (detected)
NS 4
ns-1399.awsdns-46.orgns-720.awsdns-26.netns-387.awsdns-48.comns-1584.awsdns-06.co.uk
SOA 1
ns-720.awsdns-26.net awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
Subdomains (11)
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
4f95e14a-cb5e-4a86-bb29-70cbef9a30ad- Output Hash
738d7e30d685e4386a9ae2a63c4daa6516550cf3b71fdd47ee3363a8827302a5- Signature
ed25519:6f8a9206b3e92719187f1a8b35ecb7a5ed1234205abac98c535a436a958343aaa66d0495a3c8d0b8ff17d4a4248cdb783c815291aa6d72251a77e520d606fa04- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast