CONTINUOUS INTERNET TELEMETRY24H DRIFT3,251 material changesacross 2,831 domains · -147 vs yesterdayDNS DRIFT21 domains changed DNS providertop destination digicertdns.com + digicertdns.net · -6 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination 365cool.com · -1 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,306 curated domains not answering-6,412 vs yesterdayERRORS10,960 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT3,251 material changesacross 2,831 domains · -147 vs yesterdayDNS DRIFT21 domains changed DNS providertop destination digicertdns.com + digicertdns.net · -6 vs yesterdayEMAIL DRIFT5 domains switched email providertop destination 365cool.com · -1 vs yesterdayCERT DRIFT8 domains switched issuing CA24h · +1 vs yesterdayNOW3,306 curated domains not answering-6,412 vs yesterdayERRORS10,960 responded with an errorlast probe · 5xx / 404 / 429 / 403

knaw.nl

Observed 2026-07-12T07:04:33.679Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall
Runs onCloudflare
Email byMicrosoft 365
Also usesGoogle Search ConsoleAtlassian
IPv6 · 6 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat knaw.nl actually stands on - every host below is a signed observation
knaw.nl
A / AAAA
75.2.96.23999.83.229.362600:9000:a603:d4ab:3b46:6664:541:3b6c2600:9000:a715:397e:a2c2:110b:23d8:9a4f
Cloudflareserves the site
NS
ns2.surfnet.nlns3.surfnet.nlns1.surfnet.nlns1.zurich.surf.net
surfnet.nl + surf.netanswers its DNS
MX
knaw-nl.mail.protection.outlook.com
Microsoft 365receives its email

HTTPS probe

bot_blocked Blocked our probe (WAF / bot protection) 403 blocked by cloudflare - bot protection active
HTTP status403
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time484 ms
DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

  • 75.2.96.239
  • 99.83.229.36

AAAA 2

  • 2600:9000:a603:d4ab:3b46:6664:541:3b6c
  • 2600:9000:a715:397e:a2c2:110b:23d8:9a4f

MX 1

  • 0knaw-nl.mail.protection.outlook.com

TXT 14

  • bw=PyPBZFeE2tQkoeBRxXYmeBuS3uLfkdcUswjyyL973iS6
  • adobe-idp-site-verification=e574ceb69375114ec72f4bc11ec46141ec4c1c194117b84d37a333c9a1375d04
  • v=spf1 include:spf.protection.outlook.com include:_spf.knaw.nl include:servers.mcsv.net ip4:5.39.185.32/29 ip4:185.181.140.187 ip4:87.253.234.71 ip4:87.253.234.73 ip4:87.253.234.85 include:spam1.htx.nl include:spf.mailjet.com include:_spf-dc55.sapsf.eu include:spf.topdesk.net -all
  • mCkVvXn6dUZyrFXWsGknbJGIaEbjWNeL3Rg2I92MbXPcArPmEMCPNv15sm0x65tcpO+jrI5Lt1gUi9X1EySVOw==
  • google-site-verification=94L39qL06lBH7le4wa74Yq2Me0ByOxWwLc7WdL8AA3s
  • HARICA-vvDQGK7pd3xxArhCoJD
  • have-i-been-pwned-verification=b1fd016e7cf47b73cf71b12f8ed10003
  • procurios-site-verification=gagUhW73NFSdoza3Vaj3
  • atlassian-domain-verification=9CeGC9xO7peuiHdqk16OTwnXaYfFs3iy9LGVIXxD/OxiJfEJahXbqX7Q5jrUrqJ2
  • google-site-verification=HfgEEpjNWwaecSYe8KnNATWfrzAExHVBlvTsuA7kGnk

NS 4

  • ns2.surfnet.nl
  • ns3.surfnet.nl
  • ns1.surfnet.nl
  • ns1.zurich.surf.net

SOA 1

  • ns1.surfnet.nl dns-beheer.surf.nl

CAA 5

  • issue letsencrypt.org
  • iodef mailto:knawnet@knaw.nl
  • issue amazonaws.com
  • issue harica.gr
  • issuewild harica.gr

TLS Certificates (0)

None.

Subdomains (6)

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 knaw.nl. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
4fa832df-db9c-4a6d-acbc-3c9838321ce3
Output Hash
80d0b3111d49579d7cf2a572e957e2664f513e63cd45ef7fed02b207eb6cdfcf
Signature
ed25519:f94321b4387c37b530a0d69c41a124e8f59a2fdd7372180b5bc7a778413d6608bf8951cf4484d4dcb1555e83e5fd48caf768968d4156306c05c1e702701fde01
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser