CONTINUOUS INTERNET TELEMETRY24H DRIFT10,182 material changesacross 9,753 domains · -447 vs yesterdayDNS DRIFT661 domains changed DNS providertop destination parity.domains · -119 vs yesterdayEMAIL DRIFT195 domains switched email providertop destination outlook.com · +25 vs yesterdayCERT DRIFT236 domains switched issuing CA24h · +6 vs yesterdayNOW693 curated domains not reachable-656 vs yesterdaySITE ERRORS17,940 sites serving errorslast probe · 5xx / 404 / TLSTHROTTLED96,170 throttled or blocked our scanner429 rate-limit / 403 bot-block

zlib.net

Observed Jul 21, 2026, 20:08 UTC (2d 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 onA2 Hosting
Secured byLet's Encrypt
Registered withGoDaddy.com, LLC
8 subdomains · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zlib.net actually stands on - every host below is a signed observation
zlib.net
A / AAAA
85.187.148.2
A2 Hostingserves the site
NS
ns3.a2hosting.comns2.a2hosting.comns4.a2hosting.comns1.a2hosting.com
a2hosting.comanswers its DNS
MX
zlib.net
zlib.netreceives its email
TLS
mail.zlib.net
Let's Encryptissued its certificate

DNS Records

A 1

  • 85.187.148.2

MX 1

  • 0zlib.net

TXT 1

  • v=spf1 +mx +a +ip4:68.66.224.49 ~all

NS 4

  • ns3.a2hosting.com
  • ns2.a2hosting.com
  • ns4.a2hosting.com
  • ns1.a2hosting.com

SOA 1

  • ns1.a2hosting.com root.az1-ss24.a2hosting.com

SRV 1

  • cpanelemaildiscovery.cpanel.net:443 p0

TLS Certificates (3)

Common NameIssuerExpires
mail.zlib.net C=US, O=Let's Encrypt, CN=YR1 Thu, 15 Oct 2026 10:24:35 +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 (8)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for zlib.net. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for zlib.net <a href="https://domaindrift.io/t/zlib.net"> <img src="https://domaindrift.io/badge/zlib.net.svg" width="300" height="64" alt="DomainDrift signed observations for zlib.net"> </a>

Ed25519 Receipt

Receipt ID
rcpt_58c66e17967517f4
Output Hash
8ca49e23c2a1cc266363441bbebdda58b63018efa73a2aa5e0ef8e7d887806cf
Signature
ed25519:b08a62d2944c378a96ca8e448bbed82f869fcc7c1b99fc78ba9b28a1bc41f24dc8585639b747480c70a8cb2965975ff5349aff353366aaadad79f55472da6f00
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser