sciences-po.fr

Checked 22 October 2026, 05:10 UTC · via 8.8.8.8
✗Problems found
23 passed 4 warnings 1 failed 3 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-09-25

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
25 September 1996
Last changed
25 September 2026
Expires
25 September 2027
Status
active, auto renew period
Registry nameservers
gemeaux.sciences-po.fr, lion.sciences-po.fr, nameserver03.reims.sciences-po.fr, nameserver04.reims.sciences-po.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 2027-09-25 #3
    The registration is valid until 2027-09-25 (338 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active, auto renew period). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

gemeaux.sciences-po.fr, lion.sciences-po.fr, nameserver03.reims.sciences-po.fr, nameserver04.reims.sciences-po.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
gemeaux.sciences-po.fr, lion.sciences-po.fr, nameserver03.reims.sciences-po.fr, nameserver04.reims.sciences-po.fr
NS in the zone
gemeaux.sciences-po.fr, lion.sciences-po.fr, nameserver03.reims.sciences-po.fr, nameserver04.reims.sciences-po.fr
NameserverAddressesNetwork (AS)Glue
gemeaux.sciences-po.fr193.54.67.68AS15557 LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR193.54.67.68
lion.sciences-po.fr193.54.67.71AS15557 LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR193.54.67.71
nameserver03.reims.sciences-po.fr193.48.44.236AS2200 FR-RENATER - Renater, FR193.48.44.236
nameserver04.reims.sciences-po.fr193.48.44.238AS2200 FR-RENATER - Renater, FR193.48.44.238

Checks

  • ✓ 4 nameservers #6
    Delegated to gemeaux.sciences-po.fr, lion.sciences-po.fr, nameserver03.reims.sciences-po.fr, nameserver04.reims.sciences-po.fr.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: gemeaux.sciences-po.fr, lion.sciences-po.fr, nameserver03.reims.sciences-po.fr, nameserver04.reims.sciences-po.fr.
  • ✓ 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: AS15557 (LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR): 2 addresses; AS2200 (FR-RENATER - Renater, 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

fail

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
gemeaux.sciences-po.fr 193.54.67.68NOERROR, 14 ms, authoritativenoyes / yesrefusedbind FNSP-DSI-PRS
lion.sciences-po.fr 193.54.67.71NOERROR, 13 ms, authoritativenoyes / yesALLOWED (437 records)bind FNSP-DSI-PRS
nameserver03.reims.sciences-po.fr 193.48.44.236NOERROR, 16 ms, authoritativenoyes / yesrefused9.16.23-RH
nameserver04.reims.sciences-po.fr 193.48.44.238NOERROR, 17 ms, authoritativenoyes / yesrefused9.16.23-RH

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: nameserver03.reims.sciences-po.fr: "9.16.23-RH"; nameserver04.reims.sciences-po.fr: "9.16.23-RH". Hide or replace the version string.
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: lion.sciences-po.fr (193.54.67.71): 437 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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

warn

serial 2026083101 · primary gemeaux.sciences-po.fr

Found

Primary (MNAME)
gemeaux.sciences-po.fr
Contact (RNAME)
prs.sciences-po.fr
Serial
2026083101
Refresh / retry
900 s / 900 s
Expire
900 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
gemeaux.sciences-po.fr (193.54.67.68)2026083101
lion.sciences-po.fr (193.54.67.71)2026083101
nameserver03.reims.sciences-po.fr (193.48.44.236)2026083101
nameserver04.reims.sciences-po.fr (193.48.44.238)2026083101

Checks

  • ✓ Serial 2026083101 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d; retry 15m should be shorter than refresh 15m; expire 15m is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 15m must be longer than refresh + retry. Current values: refresh 15m, retry 15m, expire 15m, negative TTL 15m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver gemeaux.sciences-po.fr is one of the listed nameservers.
  • ✓ Contact prs@sciences-po.fr #25
    The SOA RNAME prs.sciences-po.fr means prs@sciences-po.fr.
  • ✓ Date-based serial #26
    The serial 2026083101 follows the YYYYMMDDnn convention (2026-08-31).

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

17 records at the apex

Found

Read from
193.54.67.68:53
TypeValueTTL
SOAgemeaux.sciences-po.fr. prs.sciences-po.fr. 2026083101 900 900 900 90014400
NSnameserver04.reims.sciences-po.fr.14400
NSnameserver03.reims.sciences-po.fr.14400
NSgemeaux.sciences-po.fr.14400
NSlion.sciences-po.fr.14400
A193.54.67.7714400
MX10 mailserver03.sciences-po.fr.14400
MX20 mailserver01.sciences-po.fr.14400
TXT"HARICA-PHFnLvbnxR5RenpVVRQ"300
TXT"v=spf1 include:_spf.google.com include:spf.mailjet.com ip4:193.54.67.0/24 ip4:51.15.250.81 ip4:93.188.174.149 ip4:31.172.161.61 -all"300
TXT"google-site-verification=h90StUZ-6mI7-OK0WMF3QNLR71DRM5wMjGmKRqSNAZ4"300
CAA128 issue "letsencrypt.org"14400
CAA0 issue "digicert.com"14400
CAA0 issue "sectigo.com"14400
CAA0 issuewild "sectigo.com"14400
CAA0 issue "harica.gr"14400
CAA0 issuewild "harica.gr"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, MX 4h, NS 4h. The NS TTL at the parent is 1h and in the zone 4h; 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: letsencrypt.org, digicert.com, sectigo.com, harica.gr.