rcf.fr
Observed Jul 24, 2026, 01:47 UTC (7h 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.
Guarded by a firewall
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesFacebook/MetaGoogle Search Console
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rcf.fr actually stands on - every host below is a signed observation
rcf.fr
A / AAAA
163.172.137.195
unattributedserves the site
NS
ns200.anycast.medns200.anycast.me
anycast.meanswers its DNS
MX
alt1.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comalt2.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
rcf.fr
Let's Encryptissued its certificate
DNS Records
A 1
163.172.137.195
MX 5
5alt1.aspmx.l.google.com10alt4.aspmx.l.google.com1aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com
TXT 15
citrix-verification-code=c564468b-b8a9-4c91-8243-407273a556c7facebook-domain-verification=83dfqpcp672dlnqcy0w5bqw5j084unMS=ms46662008ZA=/SDuFfY3UYeufQFoQPOcmA==google-site-verification=dOdADhfCHBztF8oMwXsU4apTYNdLAf0-CipSfQC-8nkEqKdC0GzLdSh4kQA1nqMofuBGx8=Sendinblue-code:bc0f3a25a818e45929f28127f61637f2openai-domain-verification=dv-AP17gsV6a3WzGqU9QdPraxziMS=ms96082051brevo-code:e0c40dfd79def7d595925fa6e8b5460a
NS 2
ns200.anycast.medns200.anycast.me
SOA 1
dns200.anycast.me tech.ovh.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
rcf.fr |
C=US, O=Let's Encrypt, CN=YR1 | Sun, 27 Sep 2026 11:03:22 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (0)
None observed.
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_9ce68fb54aff3684- Output Hash
aab064a6a632dae431e8139010f24d850e48ea36739bc2fb9b23d62c0448ae09- Signature
ed25519:f4151b47fb631129c47a5284c6ee8156c250511634420dcc90d0b980aaca29ee5001a8be0c2ee85d7c781594e647e0776551eccd269aa33f13b3d1d4ec199d05- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast