Verifying against the live site and live WHOIS/DNS…
Common questions
Is fosdem.org legit or a scam?
AboutUs doesn't label sites "legit" or "a scam": this page lists the dated registration, DNS, HTTPS, mail-authentication and safety checks we could verify, each with its source, so you can decide for yourself.
Who owns fosdem.org?
Nobody has completed AboutUs's owner verification for fosdem.org. That's true of most sites here — it isn't itself a warning sign.
Correct a description, link or other detail. Submissions are reviewed before publication.
Registered 2001 · site is live · HTTPS valid
FOSDEM is a free, volunteer-organized conference for free and open-source software developers held annually in Brussels, Belgium. The event spans two days and offers talks and tutorials at no cost to attendees, supported by donations.
Authority 72/100— ahead of 72% of the August 2026 scored sampleClear
Why this authority score
72 is a percentile: higher than 72% of sites we score.
How it's calculated
Prominence (Tranco rank #28,405)+8
Verified continuity: 25.3 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+14
Model score: 36/99 — what these reason lines add up to.
Published Authority (percentile): 72/100 — this site's rank against the August 2026 scored sample. Public Authority is capped at 99.
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 38 days ago); 3/3 transport and email checks available (oldest recorded about 38 days ago). This is evidence coverage, not a probability that a website is safe.
What fosdem.org said about itself, 2006
Quoted from the site's AboutUs wiki page in each year it changed (1 version). These are the page's own words at the time, not AboutUs's assessment. New words · dropped words
2006
The sixth Free and Open source Software Developers' European Meeting is a 2 days event, organized by volunteers, to promote the widespread use of Free and Open Source software. Taking place in the beautiful city of Brussels, Belgium FOSDEM meetings are recognised as the best Free and Open Source events in Europe.
Site history
Dated record — historical facts always carry their date; self-description below is the 2013 record.
2001
Domain registered (Jun 22, 2001).
2006
First tracked by AboutUs (Jun 20, 2006); profile edited 3 times through 2013.
2013
Self-description at the time:
“Fosdem.org is a free convention in Brussels, Belgium for developers”
✓ domain continuity 25 years registered✓ live verified Oct 26, 2026
Missing DMARC (mild)
Lifeline · fosdem.org over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 25 years ago · on AboutUs since 2006 · one registrar since Dec 28, 2016 · no ownership change on record since 2016 · last checked Sep 30, 2026.
Registration
RegisteredJun 22, 2001fosdem.org was registered on Jun 22, 2001.Source: RDAP, fetched Sep 18, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 20, 2006 – Nov 10, 2013An AboutUs wiki page described fosdem.org from Jun 20, 2006 to Nov 10, 2013 (3 edits).Source: AboutUs wiki archive, 2006–2023
Registrar
Key-Systems GmbHKey-Systems GmbHDec 28, 2016 – Oct 26, 2026 (latest)Registrar Key-Systems GmbH (IANA 269) in the registration data recorded, first on Dec 28, 2016 and most recently on Oct 26, 2026.Source: RDAP, fetched Sep 18, 2026
Ownership
Ownership recordsDec 28, 2016 – Jun 12, 2026Registration records for fosdem.org are held from Dec 28, 2016 to Jun 12, 2026 (74 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
No ownership changes recorded, 2016–2026
Zone file
No nameserver records held, May 2017 – Jun 2020Nameservers: fosdem.org, gletsjer.net, gletsjer.org, x-net.beDec 28, 2016Registration records listed fosdem.org, gletsjer.net, gletsjer.org, x-net.be nameservers (ns.gletsjer.net, ns.gletsjer.org, ns0.x-net.be…) for fosdem.org from Dec 28, 2016 to Dec 28, 2016.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptMar 29, 2026 – Oct 26, 2026 (latest)Let's Encrypt issued 129 certificates for fosdem.org from Mar 29, 2026, the latest valid until Jan 19, 2027. Seen in use on Sep 30, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 30, 2026
20052010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (14)
Jun 22, 2001Registration: fosdem.org was registered on Jun 22, 2001.Source: RDAP, fetched Sep 18, 2026
Jun 20, 2006 – Nov 10, 2013AboutUs record: An AboutUs wiki page described fosdem.org from Jun 20, 2006 to Nov 10, 2013 (3 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “The sixth Free and Open source Software Developers' European Meeting is a 2 days event, organized by volunteers, to promote the widespread use of Free and Open Source software. Taking place in the beautiful city of Brus…”Source: AboutUs wiki archive, 2006
Dec 28, 2016 – Oct 26, 2026Registrar: Registrar Key-Systems GmbH (IANA 269) in the registration data recorded, first on Dec 28, 2016 and most recently on Oct 26, 2026.Source: RDAP, fetched Sep 18, 2026
Dec 28, 2016 – Jun 12, 2026Ownership: Registration records for fosdem.org are held from Dec 28, 2016 to Jun 12, 2026 (74 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Dec 28, 2016
Said about itself in 2006
Jul 1, 2006
“The sixth Free and Open source Software Developers' European Meeting is a 2 days event, organized by volunteers, to promote the widespread use of Free and Open Source software. Taking place in the beautiful city of Brus…”
Source: AboutUs wiki archive, 2006
Current AboutUs recordJun 22, 2026 – Sep 18, 2026 (latest)Authority and Safety last refreshed Sep 18, 2026.Source: AboutUs checks
Nameservers: fosdem.org, gletsjer.net, x-net.beMay 9, 2017Registration records listed fosdem.org, gletsjer.net, x-net.be nameservers (ns.gletsjer.net, ns0.x-net.be, ns1.fosdem.org) for fosdem.org from May 9, 2017 to May 9, 2017.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to fosdem.org, gletsjer.net, x-net.beMay 9, 2017fosdem.org's nameservers moved from fosdem.org, gletsjer.net, gletsjer.org, x-net.be to fosdem.org, gletsjer.net, x-net.be at some point between Dec 28, 2016 and May 9, 2017. Last seen at fosdem.org, gletsjer.net, gletsjer.org, x-net.be: Dec 28, 2016 (registration record). First seen at fosdem.org, gletsjer.net, x-net.be: May 9, 2017 (registration record). AboutUs holds no nameserver records for the 4 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: fosdem.org, x-net.beJun 10, 2020 – Jun 29, 2022Registration records listed fosdem.org, x-net.be nameservers (ns0.x-net.be, ns1.fosdem.org) for fosdem.org from Jun 10, 2020 to Jun 29, 2022.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to fosdem.org, x-net.beJun 10, 2020fosdem.org's nameservers moved from fosdem.org, gletsjer.net, x-net.be to fosdem.org, x-net.be at some point between May 9, 2017 and Jun 10, 2020. Last seen at fosdem.org, gletsjer.net, x-net.be: May 9, 2017 (registration record). First seen at fosdem.org, x-net.be: Jun 10, 2020 (registration record). AboutUs holds no nameserver records for the about 3 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: fosdem.org, he.net, x-net.beNameservers: fosdem.org, he.net, x-net.beAug 30, 2022 – Jun 12, 2026Registration records listed fosdem.org, he.net, x-net.be nameservers (ns1.fosdem.org, ns1.x-net.be, ns2.fosdem.org…) for fosdem.org from Aug 30, 2022 to Jun 12, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to fosdem.org, he.net, x-net.beAug 30, 2022fosdem.org's nameservers moved from fosdem.org, x-net.be to fosdem.org, he.net, x-net.be at some point between Jun 29, 2022 and Aug 30, 2022. Last seen at fosdem.org, x-net.be: Jun 29, 2022 (registration record). First seen at fosdem.org, he.net, x-net.be: Aug 30, 2022 (registration record). AboutUs holds no nameserver records for the 2 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Zone file: Registration records listed fosdem.org, gletsjer.net, gletsjer.org, x-net.be nameservers (ns.gletsjer.net, ns.gletsjer.org, ns0.x-net.be…) for fosdem.org from Dec 28, 2016 to Dec 28, 2016.Source: From registration records (WHOIS / RDAP archive, who.is)
May 9, 2017Zone file: Registration records listed fosdem.org, gletsjer.net, x-net.be nameservers (ns.gletsjer.net, ns0.x-net.be, ns1.fosdem.org) for fosdem.org from May 9, 2017 to May 9, 2017.Source: From registration records (WHOIS / RDAP archive, who.is)
May 9, 2017Zone file: fosdem.org's nameservers moved from fosdem.org, gletsjer.net, gletsjer.org, x-net.be to fosdem.org, gletsjer.net, x-net.be at some point between Dec 28, 2016 and May 9, 2017. Last seen at fosdem.org, gletsjer.net, gletsjer.org, x-net.be: Dec 28, 2016 (registration record). First seen at fosdem.org, gletsjer.net, x-net.be: May 9, 2017 (registration record). AboutUs holds no nameserver records for the 4 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Jun 10, 2020 – Jun 29, 2022Zone file: Registration records listed fosdem.org, x-net.be nameservers (ns0.x-net.be, ns1.fosdem.org) for fosdem.org from Jun 10, 2020 to Jun 29, 2022.Source: From registration records (WHOIS / RDAP archive, who.is)
Jun 10, 2020Zone file: fosdem.org's nameservers moved from fosdem.org, gletsjer.net, x-net.be to fosdem.org, x-net.be at some point between May 9, 2017 and Jun 10, 2020. Last seen at fosdem.org, gletsjer.net, x-net.be: May 9, 2017 (registration record). First seen at fosdem.org, x-net.be: Jun 10, 2020 (registration record). AboutUs holds no nameserver records for the about 3 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Aug 30, 2022 – Jun 12, 2026Zone file: Registration records listed fosdem.org, he.net, x-net.be nameservers (ns1.fosdem.org, ns1.x-net.be, ns2.fosdem.org…) for fosdem.org from Aug 30, 2022 to Jun 12, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 30, 2022Zone file: fosdem.org's nameservers moved from fosdem.org, x-net.be to fosdem.org, he.net, x-net.be at some point between Jun 29, 2022 and Aug 30, 2022. Last seen at fosdem.org, x-net.be: Jun 29, 2022 (registration record). First seen at fosdem.org, he.net, x-net.be: Aug 30, 2022 (registration record). AboutUs holds no nameserver records for the 2 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Mar 29, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 129 certificates for fosdem.org from Mar 29, 2026, the latest valid until Jan 19, 2027. Seen in use on Sep 30, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 30, 2026
Jun 22, 2026 – Sep 18, 2026AboutUs record: Authority and Safety last refreshed Sep 18, 2026.Source: AboutUs checks