DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
tno.nl runs on AS34427, with email via Microsoft 365.
- Hosting network
- AS34427AS34427
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Enabled
- CAA pinning
- Set
Sits alongside 75 other sites on AS34427. Stable here since we started watching (Aug 25, 2026).
DNS Records for tno.nl
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| tno.nl | SOA | 900 | app-dns01.tno.nl beheer-tno-netwerk.tno.nl 2020053665 10800 1080 2419200 900 | |
| tno.nl | NS | 0 | app-dns02.tno.nl | |
| tno.nl | NS | 0 | app-dns01.tno.nl | |
| tno.nl | NS | 0 | ns1.surfnet.nl | |
| tno.nl | A | 0 | 185.38.232.132 | |
| tno.nl | MX | 0 | tno-nl.a-v1.mx.microsoft | |
| tno.nl | CAA | 0 | 0 issue globalsign.com | |
| tno.nl | CAA | 0 | 0 issue letsencrypt.org | |
| tno.nl | CAA | 0 | 0 issuewild harica.gr | |
| tno.nl | CAA | 0 | 0 issue digicert.com | |
| tno.nl | CAA | 0 | 0 issuewild globalsign.com | |
| tno.nl | CAA | 0 | 0 issue harica.gr | |
| tno.nl | CAA | 0 | 0 issue amazon.com | |
| tno.nl | CAA | 0 | 0 iodef mailto:beheer-tno-netwerk@tno.nl | |
| tno.nl | AAAA | 0 | 2a02:720:9:8::132 | |
| tno.nl | TXT | 0 | z2jvTv6Cy5+WSeZKyaObruGU1eXGdI/GpmyJyAv+S2voAHgo2+cv363rgaDoQNolJmZCK5FRRiBOC0sh78s9TA== | |
| tno.nl | TXT | 0 | HARICA-pWkRIos9RdWyFzVpQdh | |
| tno.nl | TXT | 0 | atlassian-domain-verification=UrlzMKwSK3LT205ZfQtOTggDQySX1vtD7sSaNShd9MzLpEjX/12tz/LaruchZc6o | |
| tno.nl | TXT | 0 | apple-domain-verification=v8VSiA3iMAB6KQn8 | |
| tno.nl | TXT | 0 | v=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 -all | |
| tno.nl | TXT | 0 | msfpkey=lrhg46wbj7sx27x8cxhzo6q | |
| tno.nl | TXT | 0 | mailerlite-domain-verification=d89ffcafc5215adf55d0348e0d2b0f665f67e011 | |
| tno.nl | TXT | 0 | MS=ms21821455 | |
| tno.nl | TXT | 0 | d9cd26988af347cb93c4d161db489f91 | |
| tno.nl | TXT | 0 | MS=ms18810256 | |
| tno.nl | TXT | 0 | successfactors-site-verification=Y2EzYmM4NGExMDVjYjNlZjI4OWU4ODk3ZjczODEwN2NhY2M3NGYxNmExNTZkNmZkZjhjODg2NWVlN2ViM2Y0Zg== | |
| tno.nl | TXT | 0 | google-site-verification=hFByZyehxslzfa1Yupu_NxxzCgZgYOkPsU1hL0WGU9w | |
| www.tno.nl | CNAME | 0 | www.tno.nl.cdn.cloudflare.net | |
| www.tno.nl | AAAA | 0 | 2606:4700:10::6814:1264 | |
| www.tno.nl | AAAA | 0 | 2606:4700:10::ac42:9acb | |
| www.tno.nl | A | 0 | 172.66.154.203 | |
| www.tno.nl | A | 0 | 104.20.18.100 |
Get alerted the moment tno.nl's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch tno.nl continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain