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Gridlode
Rank #6,563Updated November 10, 2026

tno.nl

Innovation for life | TNO

tno.nl is registered with SURF B.V. since June 1, 1987 (39.4 years). The site runs on AB Tasty, Cloudflare, Content Security Policy and 1 other technologies. Its email security grade is C. Its SSL certificate is issued by Hellenic Academic and Research Institutions CA and is valid for 23 more days.

Domain age
39.4 yrs
Technologies
4
Email security
C
SSL days left
23

Registration

RegistrarSURF B.V.
IANA ID0000
RegisteredJune 1, 1987
UpdatedMarch 20, 2026
Statusactive
Name serversapp-dns01.tno.nl, app-dns02.tno.nl, ns1.surfnet.nl
DNSSECSigned

DNS records

TypeValueTTL
A185.38.232.132180
MXtno-nl.a-v1.mx.microsoft 0120
NSns1.surfnet.nl28800
NSapp-dns01.tno.nl28800
NSapp-dns02.tno.nl28800
CAAiodef 0 mailto:[email protected]28800
CAAissue 0 amazon.com28800
CAAissue 0 digicert.com28800
CAAissue 0 globalsign.com28800
CAAissue 0 harica.gr28800
CAAissue 0 letsencrypt.org28800
CAAissuewild 0 globalsign.com28800
CAAissuewild 0 harica.gr28800
TXTMS=ms188102563600
TXTMS=ms218214553600
TXTHARICA-pWkRIos9RdWyFzVpQdh3600
TXTmsfpkey=lrhg46wbj7sx27x8cxhzo6q3600
TXTd9cd26988af347cb93c4d161db489f913600
TXTapple-domain-verification=v8VSiA3iMAB6KQn83600
TXTgoogle-site-verification=hFByZyehxslzfa1Yupu_NxxzCgZgYOkPsU1hL0WGU9w3600
TXTmailerlite-domain-verification=d89ffcafc5215adf55d0348e0d2b0f665f67e0113600
TXTz2jvTv6Cy5+WSeZKyaObruGU1eXGdI/GpmyJyAv+S2voAHgo2+cv363rgaDoQNolJmZCK5FRRiBOC0sh78s9TA==3600
TXTatlassian-domain-verification=UrlzMKwSK3LT205ZfQtOTggDQySX1vtD7sSaNShd9MzLpEjX/12tz/LaruchZc6o3600
TXTsuccessfactors-site-verification=Y2EzYmM4NGExMDVjYjNlZjI4OWU4ODk3ZjczODEwN2NhY2M3NGYxNmExNTZkNmZkZjhjODg2NWVlN2ViM2Y0Zg==3600
TXTv=spf1 ip4:134.221.1.0/24 ip4:46.31.48.0/21 ip4:84.241.159.211 ip6:2001:1690:23:332:10:77:32:16 include:spf.protection.outlook.com include:_spf.iprox.nl include:_spf-dc55.sapsf.eu include:_spf.emply.com -all3600
AAAA2a02:720:9:8::132180

Technology stack

A/B testing
AB Tasty
CDN
Cloudflare
Security
Content Security PolicyHSTS

SSL certificate

ValidValid
IssuerGR, GEANT TLS RSA 1, Hellenic Academic and Research Institutions CA
ExpiresDecember 3, 2026
Days remaining23
ProtocolTLSv1.3
Namestno.nl, www.tno.nl

Email security

CScore 75/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSubdomains use a weaker policy (sp=none) than the main domain (p=quarantine).
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • goodDKIM keys found (selector: selector1, selector2, k1, s1, s2).
  • good1 MX record(s) found.

Homepage metadata

TitleInnovation for life | TNO
DescriptionImpactvolle innovaties creëren voor duurzaam welzijn en welvaart van de samenleving.
Languagenl
Canonicalhttps://www.tno.nl/nl/
Structured dataOrganization
IndexableYes
Word count1462

About tno.nl

Who is the registrar of tno.nl?

tno.nl is registered with SURF B.V. (IANA ID 0000).

What technology does tno.nl use?

We detected 4 technologies on tno.nl, including AB Tasty, Cloudflare, Content Security Policy, HSTS.

Does tno.nl protect its email with SPF and DMARC?

tno.nl scores 75/100 (grade C) for email security. Subdomains use a weaker policy (sp=none) than the main domain (p=quarantine). No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.

What are the name servers of tno.nl?

tno.nl uses ns1.surfnet.nl, app-dns01.tno.nl, app-dns02.tno.nl.