Website

Answer
200 OKin 201 ms
Ends at
https://www.duo.nl/zakelijk/primair-onderwijs/
Redirects
  • https://bron.nl/ (302)
Title
Primair onderwijs - DUO Zakelijk
Protocols
HTTP/1.1
Certificate
DigiCert Ireland Limited (DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1) for www.duo.nl, duo.nl, data.duo.nl, mijnduo.nl, www.mijnduo.nl and diplomaregister.nl, valid until
www
The name has no address

DNS records

bron.nl

A
TTL 1 hour
AAAA
TTL 1 hour
MX
TTL 5 min
NS
TTL 1 hour
TXT
  • 34795ab8189f9058900af51f79e50414a2d9a007be11677d35d79d4ed8b6cedf
  • _j006jnihj6zmhuldygm2l4yyqb3s5vm
  • v=spf1 mx a:spf.protection.outlook.com -all
TTL 1 hour
SOA
  • Primary server
    ns1.surfnet.nl
    Contact
    postmaster@duo.nl
    Serial
    2025046118
    Refresh
    8 hours
    Retry
    48 min
    Expire
    7 days
    Negative TTL
    1 hour
TTL 1 hour
CAA
TTL 1 hour

_dmarc.bron.nl

TXT
  • v=DMARC1;p=reject;rua=mailto:rua@duo.nl;adkim=r;aspf=r;pct=100;sp=reject
TTL 1 hour

As ns3.surfnet.nl answers them

Reputation

Domain blocklists

  • Spamhaus DBL Not listed
  • SURBL Not listed
  • URIBL Not listed

Rankings

1.19Open PageRank, out of 10
53,956,438Open PageRank position
3Referring domains

From Open PageRank

WHOIS

Domain name: bron.nl
Status:      active

Registrar:
   Rijksoverheid
   Buitenhof 34
   2513AH Den Haag
   Netherlands

DNSSEC:      yes

Domain nameservers:
   ns2.surfnet.nl
   ns3.surfnet.nl
   ns1.surfnet.nl
   ns1.zurich.surf.net

Creation Date: 1998-11-25

Updated Date: 2026-05-21

Record maintained by: SIDN BV

DNSSEC

Every link from the root to bron.nl verifies.

. Verified

  • Found 3 DNSKEY records for .
  • DS=20326/SHA-256 verifies DNSKEY=20326/SEP
  • DS=38696/SHA-256 verifies DNSKEY=38696/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=38696 and DNSKEY=38696/SEP verifies the DNSKEY RRset

nl Verified

  • Found 1 DS records for nl in the . zone
  • DS=17153/SHA-256 has algorithm ECDSAP256SHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=8763 and DNSKEY=8763 verifies the DS RRset
  • Found 2 DNSKEY records for nl
  • DS=17153/SHA-256 verifies DNSKEY=17153/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=17153 and DNSKEY=17153/SEP verifies the DNSKEY RRset

bron.nl Verified

  • Found 1 DS records for bron.nl in the nl zone
  • DS=49160/SHA-256 has algorithm RSASHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=60847 and DNSKEY=60847 verifies the DS RRset
  • Found 3 DNSKEY records for bron.nl
  • DS=49160/SHA-256 verifies DNSKEY=49160/SEP
  • Found 3 RRSIGs over DNSKEY RRset
  • RRSIG=45613 over the DNSKEY RRset was made with a key that is not trusted here
  • RRSIG=49160 and DNSKEY=49160/SEP verifies the DNSKEY RRset
  • RRSIG=53955 over the DNSKEY RRset was made with a key that is not trusted here
  • Found 2 RRSIGs over SOA RRset
  • RRSIG=45613 and DNSKEY=45613 verifies the SOA RRset
  • RRSIG=53955 and DNSKEY=53955 verifies the SOA RRset