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Total

100

DNS

Email

Security

Network

100

Availability

Domainfosdem.org

IPv41

IPv61

MX records1

StatusActive

Domain technical report

FOSDEM 2026 - Home

fosdem.org

Generated: 2026-08-09T19:30:52-05:00 · Cached result

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IPv41

IPv61

MX1

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

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

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓

CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

1 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

DMARC0 / 25 pts · Mail

DMARC policy not found.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

29 day(s) remaining.

Certificate lifetime6 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: 140.128-159.22.22.31.in-addr.arpa

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓

IPv6 connectivity35 / 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

1 record(s)

31.22.22.140

AAAA

1 record(s)

2001:67c:1808::140

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 mail.fosdem.org.

TXT

1 record(s)

"v=spf1 ip4:31.22.22.142 ip6:2001:67c:1808::142 ip4:91.203.57.13 ?all"

NS

4 record(s)

ns5.he.net.
ns1.fosdem.org.
ns1.x-net.be.
ns2.fosdem.org.

SOA

1 record(s)

ns1.fosdem.org. hostmaster.fosdem.org. 6195 1800 600 2419200 300

CAA

1 record(s)

0 issue "letsencrypt.org"

DS

1 record(s)

29225 13 2 75DE91D9630E97B617C2CC592455EBAA52481614EE41E5B9FCF7B499 C111F7CC

DNSKEY

1 record(s)

257 3 13 VEllhAgragFlKgdIUtK0z4BI/mXTV4lR4ADi/G8DQn32xHPwqkQ2Vkfy clwfsQzNm+nbnuOWqw2PZ8I5x+osYA==

RRSIG

7 record(s)

DNSKEY 13 2 300 20260820000000 20260730000000 29225 fosdem.org. 5EfFWNBTmtIYWXN4SaTbicTDf50maOo8mdTerEw0+GIfTs+Z8EIDXZjx BcI46H7UqaxFKhKPv+XScFShbBRDzQ==
SOA 13 2 600 20260820000000 20260730000000 29225 fosdem.org. HzcniQpGYKZvYmOm+zL4o+izoBDqC4DH4cyvEeI3M+VRdpZvYUqknVXN glisR/cwu5aQlqcFSldu2tSkS6r4Zw==
TXT 13 2 600 20260820000000 20260730000000 29225 fosdem.org. C7fU4uC76JN3VKn6vf7x/g/7OObuMyMsAG3FDxSK2zvsUUfRIw4/rw73 qe+sQ/fZFb2qyXZFWmM3dHf1NMbhrg==
MX 13 2 600 20260820000000 20260730000000 29225 fosdem.org. 55ZckKXl8X8VuMIY6EAMZik8hNyDzed53yMbMeNvlCH2Tdeee55HSTCk GFt0japTIDIVpwK9X6cfIIkU1FtvEQ==
A 13 2 600 20260820000000 20260730000000 29225 fosdem.org. 9dgUuG3Ej1vyqRcIsJsM2MiYcz9H1Zl4FK39aBYWe9FVM/Fz0+ZXt9Ow 3cTpQ2FAu5UVV+jGX2K3N3dW0IZDqg==
DS 8 2 3600 20260830152406 20260809142406 44925 org. sO/QatZ7oZxetFv1e2UM6QH/4Xg0dtW5Qb0dgs01w1c/30Z0VNVhlLEs uJMrhDgs1l71tqE0P8Wbsen5ZWuic/8Aj2eZnNDcqRBgCxXLxG3wRMaU xJdNG7xRCXzRFsijWKzE4UNd5yGREQFFEYmEi3XdrIwvxLnCXaIcDEZf lDI=
CAA 13 2 600 20260820000000 20260730000000 29225 fosdem.org. 1WzqhSgUoOhXtO2Bjk2eulrSok6CXLSJoTn53G4064uJ8B9ooth/HgHO /wcmc4v89YhAQrW8Dhc/YS05dFEkuA==

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 ip4:31.22.22.142 ip6:2001:67c:1808::142 ip4:91.203.57.13 ?all

DMARC

Not configured

—

Not configured

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

FOSDEM 2026 - Home

Description

Final URL

https://fosdem.org/2026/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://fosdem.org/2026/

Version

Server

nginx

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

fosdem.org

Valid from

2026-06-10T01:33:37-05:00

Valid until

2026-09-08T01:33:36-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

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

31.22.22.140

178,17 ms

Cloudflare

1.1.1.1

31.22.22.140

42,83 ms

Quad9

9.9.9.9

31.22.22.140

23,58 ms

OpenDNS

208.67.222.222

31.22.22.140

229,59 ms

AdGuard

94.140.14.14

31.22.22.140

226,65 ms

IP, geolocation and ASNAssociated network information

31.22.22.140

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mail.fosdem.org

Port 25: Closed/unreachable - 102.6 ms - 
Port 465: Closed/unreachable - 99 ms - 
Port 587: Closed/unreachable - 197.9 ms - 220 mail.fosdem.org ESMTP Postfix

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