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87
Total
75
DNS
90
Email
92
Security
65
Network
100
Availability
Domaincollege-de-france.fr
IPv42
IPv60
MX records4
StatusActive
Domain technical report

Collège de France - Enseigner la recherche en train de se faire

college-de-france.fr

Generated: 2026-08-11T07:56:07-05:00 · Cached result

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IPv42
IPv60
MX4
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

✓
CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

4 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

127 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers27 / 35 pts · Security

7 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: origin.college-de-france.fr

✓
IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)
193.52.22.121
193.52.22.122

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

4 record(s)
80 mxd.relay.renater.fr.
50 mxa.relay.renater.fr.
60 mxb.relay.renater.fr.
70 mxc.relay.renater.fr.

TXT

3 record(s)
"College de France Domaine externe"
"HARICA-gukWwvWx7YVZpYpZElB"
"v=spf1 include:spf.partage.renater.fr include:spf.mandrillapp.com include:spf-eu.exlibrisgroup.com include:mailgun.org include:mx-renater.college-de-france.fr ip4:93.188.174.0/24 ip4:93.188.174.148/32 " "ip4:167.89.29.84/32 ip4:167.89.61.57/32 ip4:168.245.15.132/32 ip4:159.183.178.118/32 include:spf.protection.outlook.com ip4:159.112.250.201/32 ip4:159.135.234.212/32 ip4:159.112.242.107 ip4:193.52.22.236/32 ip4:149.72.203.251/32 ~all"

NS

2 record(s)
darsonval.college-de-france.fr.
shiva.jussieu.fr.

SOA

1 record(s)
darsonval.college-de-france.fr. admin.college-de-france.fr. 2026080500 21600 3600 1209600 3600

CAA

4 record(s)
0 issue "harica.gr"
0 issuewild "harica.gr"
0 issuewild "letsencrypt.org"
0 issue "letsencrypt.org"

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 include:spf.partage.renater.fr include:spf.mandrillapp.com include:spf-eu.exlibrisgroup.com include:mailgun.org include:mx-renater.college-de-france.fr ip4:93.188.174.0/24 ip4:93.188.174.148/32 ip4:167.89.29.84/32 ip4:167.89.61.57/32 ip4:168.245.15.132/32 ip4:159.183.178.118/32 include:spf.protection.outlook.com ip4:159.112.250.201/32 ip4:159.135.234.212/32 ip4:159.112.242.107 ip4:193.52.22.236/32 ip4:149.72.203.251/32 ~all

DMARC

Configured
v=DMARC1; p=none;

DKIM

Selector k2
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA0b90ObWaLDc+i9MtTNmGeWO009hr20fIxhGg6XBT2kjZ1DTThopSe1nAndsupmcBwlQ5Q6LJ+ZAxLcujnPIxM0ZBLmgpkv8u6RfY4eFP8OLvdAW3oSuB0DyLDigQX4Sj8wBO4YIdQH6AAmBeOsidsKAFNFUCpc3vCxtBDR12U+cBg724l3sBkMQ8evnz6idnqxq9QAVYh8k4kJ+RP+6cqTdy7LjIm8xY/bQNpQIpGUAuDo2DjLcCDun9DAI4Q/3z+Q0o9QuQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Collège de France - Enseigner la recherche en train de se faire
Description
Final URL
https://www.college-de-france.fr/fr
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.college-de-france.fr/fr
Version
3
Server
BunnyCDN-GA1-1364
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hellenic Academic and Research Institutions CA
CN
college-de-france.fr
Valid from
2025-12-17T03:54:48-06:00
Valid until
2026-12-17T03:54:48-06:00
Days remaining
127
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES128-GCM-SHA256

Security headers

7 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
✓
Cross-Origin-Opener-PolicyImplemented
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
193.52.22.121, 193.52.22.122
173,72 ms
Cloudflare
1.1.1.1
193.52.22.121, 193.52.22.122
234,35 ms
Quad9
9.9.9.9
193.52.22.121, 193.52.22.122
130,94 ms
OpenDNS
208.67.222.222
193.52.22.121, 193.52.22.122
136,22 ms
AdGuard
94.140.14.14
193.52.22.121, 193.52.22.122
349,53 ms

IP, geolocation and ASNAssociated network information

193.52.22.121

No data
success
No
country
region
city
asn
organization
isp

193.52.22.122

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

mxd.relay.renater.fr

Port 25: Closed/unreachable - 115 ms - 
Port 465: Closed/unreachable - 4021.1 ms - 
Port 587: Closed/unreachable - 4119.2 ms -

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