alexa.com
Observed Jul 23, 2026, 06:00 UTC (39m 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
Registered withMarkMonitor Inc.
3 subdomains · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat alexa.com actually stands on - every host below is a signed observation
alexa.com
A / AAAA
52.85.151.2752.85.151.652.85.151.3652.85.151.60
Cloudflareserves the site
NS
ns-1324.awsdns-37.orgns-1556.awsdns-02.co.ukns-115.awsdns-14.comns-672.awsdns-20.net
awsdns-37.org + awsdns-02.co.uk + moreanswers its DNS
MX
amazon-smtp.amazon.com
amazon.comreceives its email
HTTPS probe
redirect
Redirecting (3xx) 302 → https://alexa.amazon.com/home
HTTP status302
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time154 ms
DNS resolutionNOERROR
Redirect chain
https://alexa.amazon.com/homeEvery field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 4
52.85.151.2752.85.151.652.85.151.3652.85.151.60
MX 1
10amazon-smtp.amazon.com
TXT 2
8543c5de-41bb-48ca-900f-2f1bcb970a3dv=DMARC1;p=quarantine;pct=100;rua=mailto:report@dmarc.amazon.com;ruf=mailto:report@dmarc.amazon.com
NS 4
ns-1324.awsdns-37.orgns-1556.awsdns-02.co.ukns-115.awsdns-14.comns-672.awsdns-20.net
SOA 1
ns-1324.awsdns-37.org awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
Subdomains (3)
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_89dc307ec6930c1a- Output Hash
edbb6286eee1e861d255e0c56e8fa080a8b67244457669decdfe5b0163fa8eeb- Signature
ed25519:f70832bf0cf5fc0b53bc1597faf289fb98f1ac6b42e28262d5e1f7a8fd48dc5bf064710408aab2951accd99bb98d307219ee1ff954db484797c2e3fcdfff4d09- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast