blockcerts.com
Observed Aug 9, 2026, 21:14 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.
blockcerts.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting blockcerts.com under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch blockcerts.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.DomainDrift asked this domain for a TXT record at a name nobody registers, and got an answer back. A domain that answers a name that was never created is answering names in general, and that is wildcard DNS.
Wildcard DNS clusters around domain parking, dynamic DNS and catch-all hosting. It is also a real attack surface: if every invented hostname resolves, then a hostname an attacker invents resolves too, which is the ground state for subdomain takeover and for phishing hosted under a name that looks legitimate.
This is evidence of wildcard behaviour, not a proven fact. It rests on one control name: a domain could legitimately serve a TXT record at exactly that name for an unrelated reason, and a wildcard that answers address records but not TXT records would not be caught here at all. What this reading is and is not.
DNS Records
A 1
69.10.61.80
MX 1
10mx.blockcerts.com
TXT 8
MS=ms99632275ss8n78f9p2e1gn95ijoouc2sa90pxkswtdp234d9w90kspmv2p4g0c7cmqv=spf1 a:mx.blockcerts.com ip4:69.10.61.99 -allgoogle-site-verification=trG6QrbrF6JjCyKNUpj5BqyvKQvvPbyn8_rNBGJOcCgoogle-site-verification=HM_7FoMa19YXdv1aWJOrp2QzbuDlTDseVHG94cjssaQgoogle-site-verification=d6HRQB7jWY_beJHikknI_LRRe78D5ybk_Fa6JlYGDqQatlassian-domain-verification=pg6cuarZkwkA8gcq5k6CAToO9ipqEHmwpUO2zCjkYLm4bF7WnrkECALGT5zwAT4z
NS 2
isla.ns.cloudflare.comjerome.ns.cloudflare.com
SOA 1
isla.ns.cloudflare.com dns.cloudflare.com
SRV 1
autodiscover.blockcerts.com:443 p0
MCP_RECORDS 1
0pxkswtdp234d9w90kspmv2p4g0c7cmq
DMARC_RECORDS 1
v=DMARC1;p=reject;rua=mailto:postmaster@blockcerts.com;ruf=mailto:postmaster@blockcerts.com;
BIMI_RECORDS 1
0pxkswtdp234d9w90kspmv2p4g0c7cmq
MTA_STS_RECORDS 1
0pxkswtdp234d9w90kspmv2p4g0c7cmq
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
*.blockcerts.com |
C=AT, O=ZeroSSL, CN=ZeroSSL RSA Domain Secure Site CA | Sun, 08 Nov 2026 23:59:59 +0000 |
ZeroSSL RSA Domain Secure Site CA |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Tue, 29 Jan 2030 23:59:59 +0000 |
Subdomains (0)
None observed.
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_4c5f4e4ec14afeca- Output Hash
0a8c00f7a407d01d404fec63771a43a53c2d341561d005f6e8d7a4ab6a1ad62b- Signature
ed25519:29b0d5478eb6b7c091ddbaad740998b1716e7b3a297cc7811f32fcd69b83f1f2c3b940967221ca1a856934bd64812bb36469cb858764f8f768df9124bda0a802- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast