CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 34,559 material changesacross 33,967+ domains · 24h to ~4h ago · a floor, 20h of 24 walkedNOW566 curated domains not reachablelast probe, steadySITE ERRORS34,433 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,712 sites429 rate-limit / 403 bot-block, a posture signal

ventilation-system.com

Observed Jul 25, 2026, 20:25 UTC (8d 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.

Verify this receipt yourself + Watch this domain
Up right now
Secured byLet's Encrypt
Also usesFacebook/MetaGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ventilation-system.com actually stands on - every host below is a signed observation
ventilation-system.com
A / AAAA
185.31.210.13
unattributedserves the site
NS
nsd2.srv53.comnsa2.srv53.orgnsa1.srv53.comnsb1.srv53.com+8 more
srv53.com + srv53.org + moreanswers its DNS
MX
gatekeeper-spf.space.net
space.netreceives its email
TLS
ventilation-system.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 185.31.210.13

MX 1

  • 100gatekeeper-spf.space.net

TXT 8

  • facebook-domain-verification=ihyxt1ao4tv87dae5j9wf1luj0iv2n
  • google-site-verification=4kK1sgOL_wVcKgaJq3z0Q9LiS3Wu6SiEfnxOD0FZ2nw
  • spf2.0/mfrom,pra include:senderid.unisender.com include:uni.ventilation-system.com ~all
  • zoho-verification=zb26281914.zmverify.zoho.eu
  • mailru-verification: d3802eda07d65b7c
  • facebook-domain-verification=524h7orfiralqref5v3wlko1e66u7z
  • v=spf1 a:mail.blaubergventilatoren.de ip4:195.30.124.240 include:spf.selzy.com ~all
  • v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:admin@ventilation-system.com

NS 12

  • nsd2.srv53.com
  • nsa2.srv53.org
  • nsa1.srv53.com
  • nsb1.srv53.com
  • nsa4.srv53.net
  • nsd2.srv53.org
  • nsb3.srv53.org
  • nsc2.srv53.com
  • nsc2.srv53.net
  • nsc4.srv53.org

SOA 1

  • nsa4.srv53.net support.dnshosting.org

TLS Certificates (3)

Common NameIssuerExpires
ventilation-system.com C=US, O=Let's Encrypt, CN=YR1 Thu, 24 Sep 2026 04:13:53 +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 (1)

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 ventilation-system.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_89919139818922dd
Output Hash
afc3a05c527944e2b07069ac1c0ae53396e8562b982ed1c3d5779f3e3609b034
Signature
ed25519:6ae4b4e2bcf9e92af486c3ec35221b15230b58284d35ea5b5e0f57cb274a60138160a43f240475df560e9af47a246b23dc69f5c251e730e1356cef0070c7bf0c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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