urssaf.fr

Checked 22 October 2026, 05:37 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.fr country-code · NAMESHIELD · expires 2027-06-28

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
NAMESHIELD
Registered
27 December 1995
Last changed
4 August 2025
Expires
28 June 2027
Status
client transfer prohibited, client delete prohibited
Registry nameservers
dns1.acoss.fr, dns2.acoss.fr, dns3.acoss.fr, dns4.acoss.fr
RDAP server
https://rdap.nic.fr/

Checks

  • i
    .fr is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .fr is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-06-28 #3
    The registration is valid until 2027-06-28 (249 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, client delete prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

dns1.acoss.fr, dns2.acoss.fr, dns3.acoss.fr, dns4.acoss.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns1.acoss.fr, dns2.acoss.fr, dns3.acoss.fr, dns4.acoss.fr
NS in the zone
dns1.acoss.fr, dns2.acoss.fr, dns3.acoss.fr, dns4.acoss.fr
NameserverAddressesNetwork (AS)Glue
dns1.acoss.fr91.209.25.133AS48140 cirtilnet - Agence Centrale Des Organismes De Securite Sociale, FR91.209.25.133
dns2.acoss.fr91.209.25.134AS48140 cirtilnet - Agence Centrale Des Organismes De Securite Sociale, FR91.209.25.134
dns3.acoss.fr194.126.128.132AS48613 Cirsonet - Ctre Informatique Recouvrement Sud Ouest, FR194.126.128.132
dns4.acoss.fr194.126.128.133AS48613 Cirsonet - Ctre Informatique Recouvrement Sud Ouest, FR194.126.128.133

Checks

  • ✓ 4 nameservers #6
    Delegated to dns1.acoss.fr, dns2.acoss.fr, dns3.acoss.fr, dns4.acoss.fr.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS48140 (cirtilnet - Agence Centrale Des Organismes De Securite Sociale, FR): 2 addresses; AS48613 (Cirsonet - Ctre Informatique Recouvrement Sud Ouest, FR): 2 addresses.
  • i
    All nameserver names under .fr
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.acoss.fr 91.209.25.133NOERROR, 22 ms, authoritativenoyes / yesrefusedI don't know !
dns2.acoss.fr 91.209.25.134NOERROR, 21 ms, authoritativenoyes / yesrefusedI don't know !
dns3.acoss.fr 194.126.128.132NOERROR, 24 ms, authoritativenoyes / yesrefusedI don't know !
dns4.acoss.fr 194.126.128.133NOERROR, 24 ms, authoritativenoyes / yesrefusedI don't know !

Checks

  • ✓ All respond #14
    All 4 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: dns1.acoss.fr: "I don't know !"; dns2.acoss.fr: "I don't know !"; dns3.acoss.fr: "I don't know !"; dns4.acoss.fr: "I don't know !".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026102102 · primary dns1.acoss.fr

Found

Primary (MNAME)
dns1.acoss.fr
Contact (RNAME)
postmaster.acoss.fr
Serial
2026102102
Refresh / retry
3600 s / 900 s
Expire
3628800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
dns1.acoss.fr (91.209.25.133)2026102102
dns2.acoss.fr (91.209.25.134)2026102102
dns3.acoss.fr (194.126.128.132)2026102102
dns4.acoss.fr (194.126.128.133)2026102102

Checks

  • ✓ Serial 2026102102 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 42d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.acoss.fr is one of the listed nameservers.
  • ✓ Contact postmaster@acoss.fr #25
    The SOA RNAME postmaster.acoss.fr means postmaster@acoss.fr.
  • ✓ Date-based serial #26
    The serial 2026102102 follows the YYYYMMDDnn convention (2026-10-21).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

pass

29 records at the apex

Found

Read from
91.209.25.133:53
TypeValueTTL
SOAdns1.acoss.fr. postmaster.acoss.fr. 2026102102 3600 900 3628800 18003600
NSdns4.acoss.fr.172800
NSdns1.acoss.fr.172800
NSdns3.acoss.fr.172800
NSdns2.acoss.fr.172800
A193.178.136.2463600
MX20 mx91.urssaf.fr.3600
MX10 mx51.urssaf.fr.3600
MX10 mx11.urssaf.fr.3600
MX20 mx71.urssaf.fr.3600
MX10 mx31.urssaf.fr.3600
MX10 mx21.urssaf.fr.3600
MX10 mx61.urssaf.fr.3600
MX20 mx81.urssaf.fr.3600
MX10 mx41.urssaf.fr.3600
TXT"v=spf1 ip4:91.233.51.128/27 ip4:91.209.25.128/27 ip4:194.126.128.128/27 ip4:194.0.166.128/27 ip4:15.188.130.110 ip4:15.236.31.146 ip4:194.0.166.217 ip4:194.0.166.218 -all"3600
TXT"apple-domain-verification=f0CfxeLTmvnVQUQK"3600
TXT"cisco-ci-domain-verification=9c5b69c9fb8cf07d0b7aaf704cdef7ebc32d8619da109c4b9d4f1809904fc57"3600
TXT"NuttusYOOJwrU+O3zGShhh0rQ3we7QBq1Zun3Gw1Rd7ckVAp8jtAHATlqxcf/4zZf3ltuIAizXcGIFvHbYHYdw=="3600
TXT"google-site-verification=6nDv_KVjp2lGpkipyqXwvl8MRLUNExkzOIkiLeNSEwA"3600
TXT"_7led1dyqbtv095a4oac6eqg1oi4a31f"3600
TXT"google-site-verification=L-wg-W5MemjwirO52kQKlFW4jVJSARtnvT84BstIGPw"3600
TXT"MS=ms58706111"3600
TXT"_c0y38hw60spvwe2dgklcq3m3bszmix4"3600
TXT"have-i-been-pwned-verification=910db545ea8cbcab5c0bbd9ff8b67e54"3600
TXT"yahoo-verification-key=J4ub8eV7fJ2IQsklIHtQHg2brSm3d3gEfCxPmbddVQ4="3600
CAA0 iodef "mailto:hostmaster@acoss.fr"3600
CAA0 issue "certigna.fr"3600
CAA0 issue "digicert.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 2d. The NS TTL at the parent is 1h and in the zone 2d; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: certigna.fr, digicert.com.