Verifying against the live site and live WHOIS/DNS…
Common questions
Is chemaxon.com 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 chemaxon.com?
Nobody has completed AboutUs's owner verification for chemaxon.com. 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.
Lifeline · chemaxon.com over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 28 years ago · on AboutUs since 2006 · 1 registrar change since Oct 21, 2011 · 1 ownership change since 2008 · last checked Sep 27, 2026.
Registration
RegisteredAug 11, 1998chemaxon.com was registered on Aug 11, 1998.Source: RDAP, fetched Aug 22, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 19, 2006 – Nov 2, 2013An AboutUs wiki page described chemaxon.com from Jun 19, 2006 to Nov 2, 2013 (5 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006
Registrar
Network Solutions, LLCNetwork Solutions, LLCOct 21, 2011 – Aug 4, 2018Registrar Network Solutions, LLC (IANA 2) in the WHOIS and RDAP records held for chemaxon.com, from Oct 21, 2011 to Aug 4, 2018.Source: WHOIS / RDAP archive (who.is)Amazon Registrar, Inc.
Ownership
Ownership recordsMay 7, 2008 – Mar 2, 2026Registration records for chemaxon.com are held from May 7, 2008 to Mar 2, 2026 (102 records). 1 change of registrant name or organization is 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, Dec 2010 – Oct 2011Nameservers: extreme.hu, royalcomp.huMay 7, 2008 – Oct 23, 2008Registration records listed extreme.hu, royalcomp.hu nameservers (ns.extreme.hu, ns.royalcomp.hu) for chemaxon.com from May 7, 2008 to Oct 23, 2008.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptMay 29, 2026 – Oct 26, 2026Let's Encrypt issued 130 certificates for chemaxon.com from May 29, 2026, the latest valid until Dec 30, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)AmazonAug 12, 2026 – Oct 26, 2026
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (24)
Aug 11, 1998Registration: chemaxon.com was registered on Aug 11, 1998.Source: RDAP, fetched Aug 22, 2026
Jun 19, 2006 – Nov 2, 2013AboutUs record: An AboutUs wiki page described chemaxon.com from Jun 19, 2006 to Nov 2, 2013 (5 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “Our products and services include tools for the storage, management and display of chemical structures and reactions on various platforms. Also, we develop software for combinatorial chemistry and drug design.”Source: AboutUs wiki archive, 2006
May 7, 2008 – Mar 2, 2026Ownership: Registration records for chemaxon.com are held from May 7, 2008 to Mar 2, 2026 (102 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
May 7, 2008 – Oct 23, 2008Zone file: Registration records listed extreme.hu, royalcomp.hu nameservers (ns.extreme.hu, ns.royalcomp.hu) for chemaxon.com from May 7, 2008 to Oct 23, 2008.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 1, 2006
“Our products and services include tools for the storage, management and display of chemical structures and reactions on various platforms. Also, we develop software for combinatorial chemistry and drug design.”
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
Amazon Registrar, Inc.
Sep 10, 2018 – Sep 27, 2026 (latest)
Registrar Amazon Registrar, Inc. (IANA 468) in the registration data recorded, first on Sep 10, 2018 and most recently on Sep 27, 2026.
Source: RDAP, fetched Aug 22, 2026
Ownership change
Sep 10, 2018
The registrant name or organization in the registration record changed; first recorded Sep 10, 2018. Who it changed to is in the full report.
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
1 ownership change, 2008–2026
Nameservers: royalcomp.hu, royalcomputer.huDec 18, 2008 – Dec 8, 2010Registration records listed royalcomp.hu, royalcomputer.hu nameservers (ns.royalcomp.hu, ns2.royalcomputer.hu) for chemaxon.com from Dec 18, 2008 to Dec 8, 2010.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to royalcomp.hu, royalcomputer.huDec 18, 2008chemaxon.com's nameservers moved from extreme.hu, royalcomp.hu to royalcomp.hu, royalcomputer.hu at some point between Oct 23, 2008 and Dec 18, 2008. Last seen at extreme.hu, royalcomp.hu: Oct 23, 2008 (registration record). First seen at royalcomp.hu, royalcomputer.hu: Dec 18, 2008 (registration record). AboutUs holds no nameserver records for the 56 days 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: chemaxon.com, chemaxon.huOct 21, 2011 – Oct 17, 2013Registration records listed chemaxon.com, chemaxon.hu nameservers (trillian.chemaxon.com, zaphod.chemaxon.hu) for chemaxon.com from Oct 21, 2011 to Oct 17, 2013. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to chemaxon.com, chemaxon.huOct 21, 2011chemaxon.com's nameservers moved from royalcomp.hu, royalcomputer.hu to chemaxon.com, chemaxon.hu at some point between Dec 8, 2010 and Oct 21, 2011. Last seen at royalcomp.hu, royalcomputer.hu: Dec 8, 2010 (registration record). First seen at chemaxon.com, chemaxon.hu: Oct 21, 2011 (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)
Nameservers: chemaxon.com, chemaxon.huOct 18, 2013 – Jan 3, 2014chemaxon.com, chemaxon.hu (trillian.chemaxon.com, zaphod.chemaxon.hu) were the nameservers listed for chemaxon.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Jan 3, 2014 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Nameservers: plex.huFeb 1, 2014 – Apr 3, 2018plex.hu (ns0.plex.hu, ns1.plex.hu) were the nameservers listed for chemaxon.com at every ICANN zone-file snapshot AboutUs holds from Feb 1, 2014 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
DNS moved to plex.huFeb 1, 2014chemaxon.com's nameservers moved from chemaxon.com, chemaxon.hu to plex.hu between Jan 3, 2014 and Feb 1, 2014. Last seen at chemaxon.com, chemaxon.hu: Jan 3, 2014 (ICANN zone-file snapshot). First seen at plex.hu: Feb 1, 2014 (ICANN zone-file snapshot).Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → ICANN zone-file snapshot)
Nameservers: plex.huApr 4, 2018 – Jul 20, 2020Registration records listed plex.hu nameservers (ns0.plex.hu, ns1.plex.hu) for chemaxon.com from Apr 4, 2018 to Jul 20, 2020. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nameservers: CloudflareNameservers: CloudflareAug 23, 2020 – Mar 2, 2026Registration records listed Cloudflare nameservers (audrey.ns.cloudflare.com, coleman.ns.cloudflare.com) for chemaxon.com from Aug 23, 2020 to Mar 2, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to CloudflareAug 23, 2020chemaxon.com's nameservers moved from plex.hu to Cloudflare between Jul 20, 2020 and Aug 23, 2020. Last seen at plex.hu: Jul 20, 2020 (registration record). First seen at Cloudflare: Aug 23, 2020 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Seen in the .com zone fileSep 8, 2026 – Sep 24, 2026 (latest)First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Sep 24, 2026. Nameservers on Sep 24, 2026: audrey.ns.cloudflare.com, coleman.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Sep 24, 2026
Amazon issued 13 certificates for chemaxon.com from Aug 12, 2026, the latest valid until Apr 29, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Google Trust ServicesAug 15, 2026 – Oct 26, 2026 (latest)Google Trust Services issued 5 certificates for chemaxon.com from Aug 15, 2026, the latest valid until Jan 11, 2027. Seen in use on Sep 27, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 27, 2026
DigiCert IncAug 17, 2026 – Oct 26, 2026DigiCert Inc issued 2 certificates for chemaxon.com from Aug 17, 2026, the latest valid until Mar 23, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Dec 18, 2008 – Dec 8, 2010
Zone file: Registration records listed royalcomp.hu, royalcomputer.hu nameservers (ns.royalcomp.hu, ns2.royalcomputer.hu) for chemaxon.com from Dec 18, 2008 to Dec 8, 2010.Source: From registration records (WHOIS / RDAP archive, who.is)
Dec 18, 2008Zone file: chemaxon.com's nameservers moved from extreme.hu, royalcomp.hu to royalcomp.hu, royalcomputer.hu at some point between Oct 23, 2008 and Dec 18, 2008. Last seen at extreme.hu, royalcomp.hu: Oct 23, 2008 (registration record). First seen at royalcomp.hu, royalcomputer.hu: Dec 18, 2008 (registration record). AboutUs holds no nameserver records for the 56 days 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)
Oct 21, 2011 – Aug 4, 2018Registrar: Registrar Network Solutions, LLC (IANA 2) in the WHOIS and RDAP records held for chemaxon.com, from Oct 21, 2011 to Aug 4, 2018.Source: WHOIS / RDAP archive (who.is)
Oct 21, 2011 – Oct 17, 2013Zone file: Registration records listed chemaxon.com, chemaxon.hu nameservers (trillian.chemaxon.com, zaphod.chemaxon.hu) for chemaxon.com from Oct 21, 2011 to Oct 17, 2013. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 21, 2011Zone file: chemaxon.com's nameservers moved from royalcomp.hu, royalcomputer.hu to chemaxon.com, chemaxon.hu at some point between Dec 8, 2010 and Oct 21, 2011. Last seen at royalcomp.hu, royalcomputer.hu: Dec 8, 2010 (registration record). First seen at chemaxon.com, chemaxon.hu: Oct 21, 2011 (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)
Oct 18, 2013 – Jan 3, 2014Zone file: chemaxon.com, chemaxon.hu (trillian.chemaxon.com, zaphod.chemaxon.hu) were the nameservers listed for chemaxon.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Jan 3, 2014 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Feb 1, 2014 – Apr 3, 2018Zone file: plex.hu (ns0.plex.hu, ns1.plex.hu) were the nameservers listed for chemaxon.com at every ICANN zone-file snapshot AboutUs holds from Feb 1, 2014 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Feb 1, 2014Zone file: chemaxon.com's nameservers moved from chemaxon.com, chemaxon.hu to plex.hu between Jan 3, 2014 and Feb 1, 2014. Last seen at chemaxon.com, chemaxon.hu: Jan 3, 2014 (ICANN zone-file snapshot). First seen at plex.hu: Feb 1, 2014 (ICANN zone-file snapshot).Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → ICANN zone-file snapshot)
Apr 4, 2018 – Jul 20, 2020Zone file: Registration records listed plex.hu nameservers (ns0.plex.hu, ns1.plex.hu) for chemaxon.com from Apr 4, 2018 to Jul 20, 2020. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Sep 10, 2018 – Sep 27, 2026Registrar: Registrar Amazon Registrar, Inc. (IANA 468) in the registration data recorded, first on Sep 10, 2018 and most recently on Sep 27, 2026.Source: RDAP, fetched Aug 22, 2026
Sep 10, 2018Ownership: The registrant name or organization in the registration record changed; first recorded Sep 10, 2018. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Aug 23, 2020 – Mar 2, 2026Zone file: Registration records listed Cloudflare nameservers (audrey.ns.cloudflare.com, coleman.ns.cloudflare.com) for chemaxon.com from Aug 23, 2020 to Mar 2, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 23, 2020Zone file: chemaxon.com's nameservers moved from plex.hu to Cloudflare between Jul 20, 2020 and Aug 23, 2020. Last seen at plex.hu: Jul 20, 2020 (registration record). First seen at Cloudflare: Aug 23, 2020 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
May 29, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 130 certificates for chemaxon.com from May 29, 2026, the latest valid until Dec 30, 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
Aug 12, 2026 – Oct 26, 2026Certificate: Amazon issued 13 certificates for chemaxon.com from Aug 12, 2026, the latest valid until Apr 29, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Aug 15, 2026 – Oct 26, 2026Certificate: Google Trust Services issued 5 certificates for chemaxon.com from Aug 15, 2026, the latest valid until Jan 11, 2027. Seen in use on Sep 27, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 27, 2026
Aug 17, 2026 – Oct 26, 2026Certificate: DigiCert Inc issued 2 certificates for chemaxon.com from Aug 17, 2026, the latest valid until Mar 23, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Sep 8, 2026 – Sep 24, 2026Zone file: First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Sep 24, 2026. Nameservers on Sep 24, 2026: audrey.ns.cloudflare.com, coleman.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Sep 24, 2026
3 of 4 safety checks passed (Oct 26, 2026).
Registered 1998 · its address redirects to www.certara.com, which answered over HTTPS
ChemAxon.com management and display of chemical structures.
Our products and services include tools for the storage, management and display of chemical structures and reactions on various platforms.
Add the HSTS, Content-Security-Policy, and X-Frame-Options response headers.
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 Aug 11, 1998 — 28 years old.
latest result
Registrar on record: Amazon Registrar, Inc. — unchanged since AboutUs began tracking (Aug 30, 2026).
latest result
HTTPS request succeeded for www.certara.com.
checked Sep 30, 2026
The live front page reads as a software or technology site that sells software or a subscription, mainly for businesses and professionals.
Authority 52/100— ahead of 52% of the August 2026 scored sampleClear
Why this authority score
52 is a percentile: higher than 52% of sites we score.
How it's calculated
Prominence (Tranco rank #279,472)+6
Verified continuity: 28.2 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+8
Model score: 28/99 — what these reason lines add up to.
Published Authority (percentile): 52/100 — 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 64 days ago); 3/3 transport and email checks available (oldest recorded about 64 days ago). This is evidence coverage, not a probability that a website is safe.
What chemaxon.com 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
Our products and services include tools for the storage, management and display of chemical structures and reactions on various platforms. Also, we develop software for combinatorial chemistry and drug design.
Site history
Dated record — historical facts always carry their date.