Verifying against the live site and live WHOIS/DNS…
Common questions
Is chemolink.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 chemolink.com?
Nobody has completed AboutUs's owner verification for chemolink.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.
3 of 4 safety checks passed (Oct 26, 2026).
Registered 2002 · site is live · HTTPS valid
ChemoLink.com provides chemicals for sale to business, industry and hobbyists
ChemoLink.com is a non-profit marketplace based in California where chemical professionals can exchange, trade, and recycle chemicals and lab instruments, with most services offered free of charge. The platform serves labs, industry professionals, and hobbyists globally, and also offers ChemoVentory, free inventory management software for chemical tracking.
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 23 years ago · on AboutUs since 2006 · 1 registrar change since Jul 1, 2011 · 1 ownership change since 2007 · last checked Sep 27, 2026.
Registration
RegisteredDec 11, 2002chemolink.com was registered on Dec 11, 2002.
Source: RDAP, fetched Aug 30, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 19, 2006 – Nov 2, 2013An AboutUs wiki page described chemolink.com from Jun 19, 2006 to Nov 2, 2013 (3 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006Jul 1, 2006“Chemolink.com is a the open meeting /marketplace for chemistry online, a non-profit organization based in California, USA. Chemolink's web service allow chemical professionals to exchange, recycle, barter chemicals, ide…”Source: AboutUs wiki archive, 2006Current AboutUs recordJul 7, 2026 – Aug 30, 2026 (latest)Authority and Safety last refreshed Aug 30, 2026.Source: AboutUs checks
Registrar
1 & 1 INTERNET AGJul 1, 2011 – Sep 12, 2012Registrar 1 & 1 INTERNET AG in the WHOIS and RDAP records held for chemolink.com, from Jul 1, 2011 to Sep 12, 2012.Source: WHOIS / RDAP archive (who.is)IONOS SEIONOS SEOct 9, 2013 – Sep 27, 2026 (latest)Registrar IONOS SE (IANA 83) in the registration data recorded, first on Oct 9, 2013 and most recently on Sep 27, 2026.Source: RDAP, fetched Aug 30, 2026
Ownership
Ownership recordsMay 16, 2007 – Jan 21, 2026Registration records for chemolink.com are held from May 16, 2007 to Jan 21, 2026 (57 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 onlyOwnership changeMar 10, 2019The registrant name or organization in the registration record changed; first recorded Mar 10, 2019. 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, 2007–2026
Zone file
No nameserver records held, May 2017 – Apr 2018Nameservers: 1and1.comNameservers: 1and1.comMay 16, 2007 – Oct 17, 2013Registration records listed 1and1.com nameservers (ns29.1and1.com, ns30.1and1.com) for chemolink.com from May 16, 2007 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)Nameservers: 1and1.comOct 18, 2013 – Apr 1, 20161and1.com (ns29.1and1.com, ns30.1and1.com) were the nameservers listed for chemolink.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Apr 1, 2016 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)Nameservers: 1and1.comApr 2, 2016 – May 22, 2017Registration records listed 1and1.com nameservers (ns29.1and1.com, ns30.1and1.com) for chemolink.com from Apr 2, 2016 to May 22, 2017. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)Nameservers: ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.orgApr 3, 2018ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org (ns1070.ui-dns.biz, ns1070.ui-dns.com, ns1070.ui-dns.de…) were the nameservers listed for chemolink.com at every ICANN zone-file snapshot AboutUs holds from Apr 3, 2018 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)DNS moved to ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.orgApr 3, 2018chemolink.com's nameservers moved from 1and1.com to ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org at some point between May 22, 2017 and Apr 3, 2018. Last seen at 1and1.com: May 22, 2017 (registration record). First seen at ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org: Apr 3, 2018 (ICANN zone-file snapshot). 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 → ICANN zone-file snapshot)Nameservers: ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.orgNameservers: ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.orgJul 2, 2018 – Jan 21, 2026Registration records listed ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org nameservers (ns1070.ui-dns.biz, ns1070.ui-dns.com, ns1070.ui-dns.de…) for chemolink.com from Jul 2, 2018 to Jan 21, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)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: ns1070.ui-dns.biz, ns1070.ui-dns.com, ns1070.ui-dns.de, ns1070.ui-dns.org.Source: ICANN CZDS zone file, snapshot Sep 24, 2026
Certificate
Sectigo LimitedJan 18, 2026 – Oct 26, 2026 (latest)Sectigo Limited issued 1 certificate for chemolink.com from Jan 18, 2026, the latest valid until Feb 1, 2027. Seen in use on Sep 27, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 27, 2026Google Trust ServicesOct 14, 2026 – Oct 26, 2026Google Trust Services issued 1 certificate for chemolink.com from Oct 14, 2026, the latest valid until Jan 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Let's EncryptOct 14, 2026 – Oct 26, 2026Let's Encrypt issued 1 certificate for chemolink.com from Oct 14, 2026, the latest valid until Jan 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
20052010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (18)
Dec 11, 2002Registration: chemolink.com was registered on Dec 11, 2002.Source: RDAP, fetched Aug 30, 2026
Jun 19, 2006 – Nov 2, 2013AboutUs record: An AboutUs wiki page described chemolink.com from Jun 19, 2006 to Nov 2, 2013 (3 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “Chemolink.com is a the open meeting /marketplace for chemistry online, a non-profit organization based in California, USA. Chemolink's web service allow chemical professionals to exchange, recycle, barter chemicals, ide…”Source: AboutUs wiki archive, 2006
May 16, 2007 – Jan 21, 2026Ownership: Registration records for chemolink.com are held from May 16, 2007 to Jan 21, 2026 (57 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 16, 2007 – Oct 17, 2013Zone file: Registration records listed 1and1.com nameservers (ns29.1and1.com, ns30.1and1.com) for chemolink.com from May 16, 2007 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)
Jul 1, 2011 – Sep 12, 2012Registrar: Registrar 1 & 1 INTERNET AG in the WHOIS and RDAP records held for chemolink.com, from Jul 1, 2011 to Sep 12, 2012.Source: WHOIS / RDAP archive (who.is)
Oct 9, 2013 – Sep 27, 2026Registrar: Registrar IONOS SE (IANA 83) in the registration data recorded, first on Oct 9, 2013 and most recently on Sep 27, 2026.Source: RDAP, fetched Aug 30, 2026
Oct 18, 2013 – Apr 1, 2016Zone file: 1and1.com (ns29.1and1.com, ns30.1and1.com) were the nameservers listed for chemolink.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Apr 1, 2016 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Apr 2, 2016 – May 22, 2017Zone file: Registration records listed 1and1.com nameservers (ns29.1and1.com, ns30.1and1.com) for chemolink.com from Apr 2, 2016 to May 22, 2017. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Apr 3, 2018Zone file: ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org (ns1070.ui-dns.biz, ns1070.ui-dns.com, ns1070.ui-dns.de…) were the nameservers listed for chemolink.com at every ICANN zone-file snapshot AboutUs holds from Apr 3, 2018 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Apr 3, 2018Zone file: chemolink.com's nameservers moved from 1and1.com to ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org at some point between May 22, 2017 and Apr 3, 2018. Last seen at 1and1.com: May 22, 2017 (registration record). First seen at ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org: Apr 3, 2018 (ICANN zone-file snapshot). 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 → ICANN zone-file snapshot)
Jul 2, 2018 – Jan 21, 2026Zone file: Registration records listed ui-dns.biz, ui-dns.com, ui-dns.de, ui-dns.org nameservers (ns1070.ui-dns.biz, ns1070.ui-dns.com, ns1070.ui-dns.de…) for chemolink.com from Jul 2, 2018 to Jan 21, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Mar 10, 2019Ownership: The registrant name or organization in the registration record changed; first recorded Mar 10, 2019. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jan 18, 2026 – Oct 26, 2026Certificate: Sectigo Limited issued 1 certificate for chemolink.com from Jan 18, 2026, the latest valid until Feb 1, 2027. Seen in use on Sep 27, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 27, 2026
Jul 7, 2026 – Aug 30, 2026AboutUs record: Authority and Safety last refreshed Aug 30, 2026.Source: AboutUs checks
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: ns1070.ui-dns.biz, ns1070.ui-dns.com, ns1070.ui-dns.de, ns1070.ui-dns.org.Source: ICANN CZDS zone file, snapshot Sep 24, 2026
Oct 14, 2026 – Oct 26, 2026Certificate: Google Trust Services issued 1 certificate for chemolink.com from Oct 14, 2026, the latest valid until Jan 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Oct 14, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 1 certificate for chemolink.com from Oct 14, 2026, the latest valid until Jan 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Automated safety checks
DNS (passed)
HTTPS (passed)
Page metadata (passed)
Security headers (failed)
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 Dec 11, 2002 — 23 years old.
latest result
Registrar on record: IONOS SE — unchanged since AboutUs began tracking (Sep 27, 2026).
latest result
HTTPS request succeeded for chemolink.com.
checked Sep 30, 2026
Parts of the description above no longer match the live site, so it may be out of date.
Authority 59/100— ahead of 59% of the August 2026 scored sampleClear
Why this authority score
59 is a percentile: higher than 59% of sites we score.
How it's calculated
Prominence (Tranco rank #107,551)+7
Verified continuity: 23.9 years (RDAP registration)+10
Security & email hygiene+3
Calibration adjustment (published map)+11
Model score: 31/99 — what these reason lines add up to.
Published Authority (percentile): 59/100 — 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 57 days ago); 3/3 transport and email checks available (oldest recorded about 57 days ago). This is evidence coverage, not a probability that a website is safe.
What chemolink.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
Chemolink.com is a the open meeting /marketplace for chemistry online, a non-profit organization based in California, USA. Chemolink's web service allow chemical professionals to exchange, recycle, barter chemicals, ideas, challenges and other documents around the world. There is no fee associated with most of the services/posting.
Site history
Dated record — historical facts always carry their date.