Verifying against the live site and live WHOIS/DNS…
Common questions
Is cadforum.cz 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 cadforum.cz?
Nobody has completed AboutUs's owner verification for cadforum.cz. 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.
1 of 2 safety checks passed (Oct 26, 2026).
Registered 2000 · AboutUs could not get a response over HTTPS when it checked (Oct 26, 2026)
CadForum.cz
CAD Forum is a popular CAD web portal with a database of over 5.000 free Tips and Tricks for AutoCAD, LT, Inventor, Revit, Map, Civil 3D, 3ds max and other Autodesk products (in English, Czech and German).
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 26 years ago · on AboutUs since 2006 · 4 registrar changes since Mar 8, 2009 · 2 ownership changes since 2009 · last checked Oct 16, 2026.
Registration
RegisteredMay 25, 2000cadforum.cz was registered on May 25, 2000.Source: RDAP, fetched Aug 22, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 19, 2006 – Nov 2, 2013An AboutUs wiki page described cadforum.cz from Jun 19, 2006 to Nov 2, 2013 (7 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006Jul 1, 2006“CAD Forum is a popular CAD web portal with a database of over 5.000 free Tips and Tricks for AutoCAD, LT, Inventor, Revit, Map, Civil 3D, 3ds max and other Autodesk products (in English, Czech and German). You can downl…”
Registrar
REG-CTMar 8, 2009 – Sep 28, 2009Registrar REG-CT in the WHOIS and RDAP records held for cadforum.cz, from Mar 8, 2009 to Sep 28, 2009.Source: WHOIS / RDAP archive (who.is)REG-IGNUMREG-IGNUMAug 22, 2011 – Oct 27, 2021Registrar REG-IGNUM in the WHOIS and RDAP records held for cadforum.cz, from Aug 22, 2011 to Oct 27, 2021.
Ownership
Ownership recordsMar 8, 2009 – Jun 28, 2026Registration records for cadforum.cz are held from Mar 8, 2009 to Jun 28, 2026 (44 records). 2 changes of registrant name or organization are marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Zone file
No nameserver records held, Sep 2009 – Aug 2011No nameserver records held, Sep 2024 – Jun 2025Nameservers: aac-solutions.cz, tel.czMar 8, 2009 – Sep 28, 2009Registration records listed aac-solutions.cz, tel.cz nameservers (ns.aac-solutions.cz, ns2.tel.cz) for cadforum.cz from Mar 8, 2009 to Sep 28, 2009.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
DigiCert IncDigiCert IncSep 9, 2025 – Sep 15, 2026DigiCert Inc issued 1 certificate for cadforum.cz from Sep 9, 2025, the latest valid until Sep 15, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Let's Encrypt
20102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (19)
May 25, 2000Registration: cadforum.cz was registered on May 25, 2000.Source: RDAP, fetched Aug 22, 2026
Jun 19, 2006 – Nov 2, 2013AboutUs record: An AboutUs wiki page described cadforum.cz from Jun 19, 2006 to Nov 2, 2013 (7 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “CAD Forum is a popular CAD web portal with a database of over 5.000 free Tips and Tricks for AutoCAD, LT, Inventor, Revit, Map, Civil 3D, 3ds max and other Autodesk products (in English, Czech and German). You can downl…”Source: AboutUs wiki archive, 2006
Mar 8, 2009 – Sep 28, 2009Registrar: Registrar REG-CT in the WHOIS and RDAP records held for cadforum.cz, from Mar 8, 2009 to Sep 28, 2009.Source: WHOIS / RDAP archive (who.is)
Mar 8, 2009 – Jun 28, 2026Ownership: Registration records for cadforum.cz are held from Mar 8, 2009 to Jun 28, 2026 (44 records). 2 changes of registrant name or organization are marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Mar 8, 2009 – Sep 28, 2009
Source: AboutUs wiki archive, 2006
Current AboutUs recordJul 4, 2026 – Aug 22, 2026 (latest)Authority and Safety last refreshed Aug 22, 2026.Source: AboutUs checks
Source: WHOIS / RDAP archive (who.is)
REG-WEBGLOBEJan 24, 2022 – Sep 7, 2024Registrar REG-WEBGLOBE in the WHOIS and RDAP records held for cadforum.cz, from Jan 24, 2022 to Sep 7, 2024.Source: WHOIS / RDAP archive (who.is)
REG-NAMESHIELDJun 29, 2025 – Jun 2, 2026Registrar REG-NAMESHIELD in the WHOIS and RDAP records held for cadforum.cz, from Jun 29, 2025 to Jun 2, 2026.Source: WHOIS / RDAP archive (who.is)
NAMESHIELD SASOct 8, 2026 – Oct 20, 2026 (latest)Registrar NAMESHIELD SAS in the registration data recorded, first on Oct 8, 2026 and most recently on Oct 20, 2026.Source: RDAP, fetched Aug 22, 2026
Ownership change
Jan 16, 2013
The registrant name or organization in the registration record changed; first recorded Jan 16, 2013. Who it changed to is in the full report.
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Ownership changeJun 29, 2025The registrant name or organization in the registration record changed; first recorded Jun 29, 2025. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
2 ownership changes, 2009–2026
Nameservers: ignum.com, ignum.cz
Nameservers: ignum.com, ignum.czAug 22, 2011 – Sep 7, 2024Registration records listed ignum.com, ignum.cz nameservers (ns1.ignum.com, ns2.ignum.cz) for cadforum.cz from Aug 22, 2011 to Sep 7, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to ignum.com, ignum.czAug 22, 2011cadforum.cz's nameservers moved from aac-solutions.cz, tel.cz to ignum.com, ignum.cz at some point between Sep 28, 2009 and Aug 22, 2011. Last seen at aac-solutions.cz, tel.cz: Sep 28, 2009 (registration record). First seen at ignum.com, ignum.cz: Aug 22, 2011 (registration record). AboutUs holds no nameserver records for the 23 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: nadns1.com, nadns1.frJun 29, 2025 – Jun 28, 2026Registration records listed nadns1.com, nadns1.fr nameservers (ns1-a.nadns1.fr, ns1-b.nadns1.com, ns1-c.nadns1.com) for cadforum.cz from Jun 29, 2025 to Jun 28, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to nadns1.com, nadns1.frJun 29, 2025cadforum.cz's nameservers moved from ignum.com, ignum.cz to nadns1.com, nadns1.fr at some point between Sep 7, 2024 and Jun 29, 2025. Last seen at ignum.com, ignum.cz: Sep 7, 2024 (registration record). First seen at nadns1.com, nadns1.fr: Jun 29, 2025 (registration record). AboutUs holds no nameserver records for the 10 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)
Jul 28, 2026 – Oct 26, 2026
Let's Encrypt issued 5 certificates for cadforum.cz from Jul 28, 2026, the latest valid until Jan 10, 2027. The check on Oct 16, 2026 saw it, expired Oct 26, 2026.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 16, 2026
Zone file: Registration records listed aac-solutions.cz, tel.cz nameservers (ns.aac-solutions.cz, ns2.tel.cz) for cadforum.cz from Mar 8, 2009 to Sep 28, 2009.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 22, 2011 – Oct 27, 2021Registrar: Registrar REG-IGNUM in the WHOIS and RDAP records held for cadforum.cz, from Aug 22, 2011 to Oct 27, 2021.Source: WHOIS / RDAP archive (who.is)
Aug 22, 2011 – Sep 7, 2024Zone file: Registration records listed ignum.com, ignum.cz nameservers (ns1.ignum.com, ns2.ignum.cz) for cadforum.cz from Aug 22, 2011 to Sep 7, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 22, 2011Zone file: cadforum.cz's nameservers moved from aac-solutions.cz, tel.cz to ignum.com, ignum.cz at some point between Sep 28, 2009 and Aug 22, 2011. Last seen at aac-solutions.cz, tel.cz: Sep 28, 2009 (registration record). First seen at ignum.com, ignum.cz: Aug 22, 2011 (registration record). AboutUs holds no nameserver records for the 23 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)
Jan 16, 2013Ownership: The registrant name or organization in the registration record changed; first recorded Jan 16, 2013. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jan 24, 2022 – Sep 7, 2024Registrar: Registrar REG-WEBGLOBE in the WHOIS and RDAP records held for cadforum.cz, from Jan 24, 2022 to Sep 7, 2024.Source: WHOIS / RDAP archive (who.is)
Jun 29, 2025 – Jun 2, 2026Registrar: Registrar REG-NAMESHIELD in the WHOIS and RDAP records held for cadforum.cz, from Jun 29, 2025 to Jun 2, 2026.Source: WHOIS / RDAP archive (who.is)
Jun 29, 2025Ownership: The registrant name or organization in the registration record changed; first recorded Jun 29, 2025. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jun 29, 2025 – Jun 28, 2026Zone file: Registration records listed nadns1.com, nadns1.fr nameservers (ns1-a.nadns1.fr, ns1-b.nadns1.com, ns1-c.nadns1.com) for cadforum.cz from Jun 29, 2025 to Jun 28, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Jun 29, 2025Zone file: cadforum.cz's nameservers moved from ignum.com, ignum.cz to nadns1.com, nadns1.fr at some point between Sep 7, 2024 and Jun 29, 2025. Last seen at ignum.com, ignum.cz: Sep 7, 2024 (registration record). First seen at nadns1.com, nadns1.fr: Jun 29, 2025 (registration record). AboutUs holds no nameserver records for the 10 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)
Sep 9, 2025 – Sep 15, 2026Certificate: DigiCert Inc issued 1 certificate for cadforum.cz from Sep 9, 2025, the latest valid until Sep 15, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jul 4, 2026 – Aug 22, 2026AboutUs record: Authority and Safety last refreshed Aug 22, 2026.Source: AboutUs checks
Jul 28, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 5 certificates for cadforum.cz from Jul 28, 2026, the latest valid until Jan 10, 2027. The check on Oct 16, 2026 saw it, expired Oct 26, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 16, 2026
Oct 8, 2026 – Oct 20, 2026Registrar: Registrar NAMESHIELD SAS in the registration data recorded, first on Oct 8, 2026 and most recently on Oct 20, 2026.Source: RDAP, fetched Aug 22, 2026
Automated safety checks
DNS (passed)
HTTPS (failed)
Make sure the site responds over HTTPS with a valid certificate.
AboutUs has not vetted this site. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.
Current facts
Latest available measurements; dated entries retain their dates. These are measurements, not an endorsement of the site.
latest result
Domain registered May 25, 2000 — 26 years old.
latest result
Registrar on record: NAMESHIELD SAS — unchanged since AboutUs began tracking (Oct 8, 2026).
checked Oct 3, 2026
The live front page reads as a community or social site that publishes free content supported by ads, mainly for specialists in its field.
Authority 55/100— ahead of 55% of the August 2026 scored sampleClear
Why this authority score
55 is a percentile: higher than 55% of sites we score.
How it's calculated
Prominence (Tranco rank #179,341)+6
Verified continuity: 26.4 years (RDAP registration)+11
Security & email hygiene+2
Calibration adjustment (published map)+10
Model score: 29/99 — what these reason lines add up to.
Published Authority (percentile): 55/100 — 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 65 days ago); 3/3 transport and email checks available (oldest recorded about 65 days ago). This is evidence coverage, not a probability that a website is safe.
What cadforum.cz 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
CAD Forum is a popular CAD web portal with a database of over 5.000 free Tips and Tricks for AutoCAD, LT, Inventor, Revit, Map, Civil 3D, 3ds max and other Autodesk products (in English, Czech and German). You can download hundreds of CAD utilities and add-ons, find relevant CAD links, CAD glossary, etc.
Site history
Dated record — historical facts always carry their date.