authy.com
Observed 2026-07-14T08:55:47.680Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Registered withMarkMonitor Inc.
10 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat authy.com actually stands on - every host below is a signed observation
authy.com
A / AAAA
104.16.164.116104.16.163.116
Cloudflareserves the site
NS
elsa.ns.cloudflare.comjay.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx3.googlemail.comaspmx4.googlemail.comalt1.aspmx.l.google.comaspmx2.googlemail.com+3 more
Google Workspacereceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.authy.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time29 ms
DNS resolutionNOERROR
Redirect chain
https://www.authy.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 2
104.16.164.116104.16.163.116
MX 7
30aspmx3.googlemail.com30aspmx4.googlemail.com20alt1.aspmx.l.google.com30aspmx2.googlemail.com20alt2.aspmx.l.google.com30aspmx5.googlemail.com10aspmx.l.google.com
TXT 6
detectify-verification=6017881a1afd34e34069c9cd37d2f8bav=spf1 include:authy.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~allkeybase-site-verification=sWiSc77ZSk6NB-eHPDN-6BYPu7Xd7cwK3HZ0aUohWtwOSSRH-81386v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; ruf=mailto:dmarc@twilio.comv=DKIM1; (detected)
NS 2
elsa.ns.cloudflare.comjay.ns.cloudflare.com
SOA 1
elsa.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (0)
None.
Subdomains (10)
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
e7bc8237-51de-4cac-a1e9-2d6f33825599- Output Hash
1209869992eece6aa4c667e7ffafd8e73f2f133b2fd8a98eacb5707902a24ea0- Signature
ed25519:4e98af67a2f36aa5bfefdb6baf56134792806590d3d93b1ac97b2c271390049727916bc566f9d8ebe5d0fb32a342fadbc1f08c47ab690c52a6a4698b2a5adc00- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast