portdiscovery.org

Last scanned 13h ago; the signed record is unchanged since 18d ago. Every field below carries an Ed25519 signature from that last reading. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Up right now
Runs onCloudflare
Email bySalesforce
Secured byLet's Encrypt
Also usesMicrosoft 365
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for portdiscovery.org in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.

SIGNED-OUT VIEW Provider names, posture and counts are shown. The record values - every DNS answer, each subdomain hostname, raw TXT, IPs, cert names and WHOIS - are the product. Sign in for the full signed record, or use the API with a key.

DNS records 10

A2NS2MX2TXT3SOA1

TLS certificates 4

Issued byLet's Encrypt
ExpiresFri, 02 Oc (34d)
Certificate nameswithheld

Subdomains 0

None observed.

WILDCARD DNSobserved 2026-08-28 18:33 UTC

DomainDrift asked this domain for one hostname that nobody ever registered, and it answered. A domain that answers invented hostnames is running wildcard DNS. It is common and usually deliberate. A SaaS platform gives every customer a subdomain this way. How the check works

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; the only network request the check makes is for the published public keys.

Verify this receipt
Ed25519 receiptthe raw cryptographic proof
Receipt ID
rcpt_774c099f11ac320e
Output Hash
28719937733619fafd372d3f4a912edd7f6e480207155a0c470f5feaee441966
Signature
ed25519:aee6112fa99d967f052914f1ded835cd7ff5bdd5c832566a6062f6b2c004521e89b2cbed8d4a55d7e84684e11e7d6d18a73459e40dc0bb3e2cbbeed8b6295f03
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT10,914 material changesacross 8,621 domains · 24h to ~40m ago · +3,377 vs yesterdayROTATION58 domains moved DNS from koaladns.com to magpiedns.com, 56 moved backa rotation loop, not a migration · 24hEMAIL DRIFT2 domains switched email providertop destination outlook.comNOW563 curated domains not reachablelast probe, steadySITE ERRORS17,779 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 79,245 sites429 rate-limit / 403 bot-block, a posture signal