sandervunderink.nl

Observed Aug 11, 2026, 12:37 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of sandervunderink.nl was taken 5d ago

sandervunderink.nl is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting sandervunderink.nl 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 sandervunderink.nl Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Guarded by a firewall
Runs onCloudflare
Secured byGoogle Trust Services
Also usesMicrosoft 365
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat sandervunderink.nl actually stands on - every host below is a signed observation
sandervunderink.nl
A / AAAA
104.26.2.102104.26.3.102172.67.69.182606:4700:20::681a:266+2 more
Cloudflareserves the site
NS
aisha.ns.cloudflare.comgabriel.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
d320092.a.ess.de.barracudanetworks.comd320092.b.ess.de.barracudanetworks.com
barracudanetworks.comreceives its email
TLS
sandervunderink.nl
Google Trust Servicesissued its certificate

DNS Records

A 3

  • 104.26.2.102
  • 104.26.3.102
  • 172.67.69.18

AAAA 3

  • 2606:4700:20::681a:266
  • 2606:4700:20::681a:366
  • 2606:4700:20::ac43:4512

MX 2

  • 10d320092.a.ess.de.barracudanetworks.com
  • 20d320092.b.ess.de.barracudanetworks.com

TXT 3

  • MS=ms82562244
  • ahrefs-site-verification_57d7c06b97c0b18851e444d76862583bf6dc21ab99e5a31469ac6bef19e66d74
  • v=spf1 a mx ip4:95.216.117.252 ip6:2a01:4f9:2b:1b82::2 ip4:85.202.88.4 ip4:85.202.90.4 ip4:46.21.233.172 ip4:46.21.232.141 ip4:31.7.4.223 ip4:31.7.4.240 ip4:82.75.150.229 include:spf.svm2.hypernode.io include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com ~all

NS 2

  • aisha.ns.cloudflare.com
  • gabriel.ns.cloudflare.com

SOA 1

  • aisha.ns.cloudflare.com dns.cloudflare.com

DMARC_RECORDS 1

  • v=DMARC1;p=none;

TLS Certificates (3)

Common NameIssuerExpires
sandervunderink.nl C=US, O=Google Trust Services, CN=WE1 Mon, 28 Sep 2026 13:47:18 +0000
WE1 C=US, O=Google Trust Services LLC, CN=GTS Root R4 Tue, 20 Feb 2029 14:00:00 +0000
GTS Root R4 C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA Fri, 28 Jan 2028 00:00:42 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_806def4132e41892
Output Hash
3d893c9013367ac575327cc0758615ed9f34fff612fd05cedb4f68b32d732889
Signature
ed25519:fe3e314b42e8ba7f74473ee434542a74a7640fc9ebee58b393a4108ea2de24e33771d8975620b59c5b762537c6c477ac78d414b7a061b25175a9f1a23818b105
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT41,169 material changesacross 39,364 domains · 24h to ~65m ago · -390 vs yesterdayROTATION57 domains moved DNS from koaladns.com to magpiedns.com, 54 moved backa rotation loop, not a migration · 24hEMAIL DRIFT3 domains switched email providertop destination alltheemails.comNOW540 curated domains not reachable+45 vs yesterdaySITE ERRORS36,471 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,655 sites429 rate-limit / 403 bot-block, a posture signal