Verifying against the live site and live WHOIS/DNS…
Common questions
Is bayer.com legit or a scam?
bayer.com was registered Jan 25, 1996 (30 years old), per public registration records. 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 bayer.com?
Nobody has completed AboutUs's owner verification for bayer.com. That's true of most sites here — it isn't itself a warning sign.
When was bayer.com registered?
bayer.com's registration dates to Jan 25, 1996 (30 years old), per public registration records. CSC Corporate Domains, Inc. is the registrar on record today.
Correct a description, link or other detail. Submissions are reviewed before publication.
Lifeline · bayer.com over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 30 years ago · on AboutUs since 2013 · 1 registrar change since May 15, 2007 · 2 ownership changes since 2007 · last checked Oct 25, 2026.
Registration
RegisteredJan 25, 1996bayer.com was registered on Jan 25, 1996.Source: RDAP, fetched Oct 25, 2026
AboutUs record
AboutUs wiki pageNov 6, 2013 – Apr 13, 2014An AboutUs wiki page described bayer.com from Nov 6, 2013 to Apr 13, 2014 (2 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2013Jul 1, 2013
Registrar
REGISTER.COM, INC.May 15, 2007 – Jul 12, 2007Registrar REGISTER.COM, INC. in the WHOIS and RDAP records held for bayer.com, from May 15, 2007 to Jul 12, 2007.Source: WHOIS / RDAP archive (who.is)CSC Corporate Domains, Inc.
Ownership
Ownership recordsMay 15, 2007 – Jun 24, 2026Registration records for bayer.com are held from May 15, 2007 to Jun 24, 2026 (891 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, Jul 2007 – Mar 2009Nameservers: uu.netMay 15, 2007 – Jul 12, 2007Registration records listed uu.net nameservers (auth00.ns.uu.net, auth61.ns.uu.net) for bayer.com from May 15, 2007 to Jul 12, 2007.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
AmazonAmazonNov 25, 2025 – Oct 26, 2026Amazon issued 120 certificates for bayer.com from Nov 25, 2025, the latest valid until May 11, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Corporation Service Company
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (26)
Jan 25, 1996Registration: bayer.com was registered on Jan 25, 1996.Source: RDAP, fetched Oct 25, 2026
May 15, 2007 – Jul 12, 2007Registrar: Registrar REGISTER.COM, INC. in the WHOIS and RDAP records held for bayer.com, from May 15, 2007 to Jul 12, 2007.Source: WHOIS / RDAP archive (who.is)
May 15, 2007 – Jun 24, 2026Ownership: Registration records for bayer.com are held from May 15, 2007 to Jun 24, 2026 (891 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
May 15, 2007 – Jul 12, 2007Zone file: Registration records listed uu.net nameservers (auth00.ns.uu.net, auth61.ns.uu.net) for bayer.com from May 15, 2007 to Jul 12, 2007.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 21, 2007 – Oct 22, 2026Registrar: Registrar CSC Corporate Domains, Inc. (IANA 299) in the registration data recorded, first on Jul 21, 2007 and most recently on Oct 22, 2026.Source: RDAP, fetched Oct 25, 2026
Mar 5, 2009 – Jul 4, 2012
“Bayer AG is a German chemical and pharmaceutical company founded in Barmen, Germany in 1863. Today it is headquartered in Leverkusen, North Rhine-Westphali...”
Source: AboutUs wiki archive, 2013
Current AboutUs recordJun 23, 2026 – Oct 25, 2026 (latest)Authority and Safety last refreshed Oct 25, 2026.Source: AboutUs checks
CSC Corporate Domains, Inc.
Jul 21, 2007 – Oct 22, 2026 (latest)
Registrar CSC Corporate Domains, Inc. (IANA 299) in the registration data recorded, first on Jul 21, 2007 and most recently on Oct 22, 2026.
Source: RDAP, fetched Oct 25, 2026
Ownership change
Nov 28, 2013
The registrant name or organization in the registration record changed; first recorded Nov 28, 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, 2016The registrant name or organization in the registration record changed; first recorded Jun 29, 2016. 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, 2007–2026
Nameservers: cscdns.netMar 5, 2009 – Jul 4, 2012Registration records listed cscdns.net nameservers (pdns1.cscdns.net, pdns2.cscdns.net) for bayer.com from Mar 5, 2009 to Jul 4, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to cscdns.netMar 5, 2009bayer.com's nameservers moved from uu.net to cscdns.net at some point between Jul 12, 2007 and Mar 5, 2009. Last seen at uu.net: Jul 12, 2007 (registration record). First seen at cscdns.net: Mar 5, 2009 (registration record). AboutUs holds no nameserver records for the 20 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: verisigndns.comJul 8, 2012 – Sep 10, 2012Registration records listed verisigndns.com nameservers (a1.verisigndns.com, a2.verisigndns.com, a3.verisigndns.com…) for bayer.com from Jul 8, 2012 to Sep 10, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to verisigndns.comJul 8, 2012bayer.com's nameservers moved from cscdns.net to verisigndns.com between Jul 4, 2012 and Jul 8, 2012. Last seen at cscdns.net: Jul 4, 2012 (registration record). First seen at verisigndns.com: Jul 8, 2012 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: cscdns.netSep 26, 2012 – Oct 17, 2013Registration records listed cscdns.net nameservers (pdns1.cscdns.net, pdns2.cscdns.net) for bayer.com from Sep 26, 2012 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 cscdns.netSep 26, 2012bayer.com's nameservers moved from verisigndns.com to cscdns.net between Sep 10, 2012 and Sep 26, 2012. Last seen at verisigndns.com: Sep 10, 2012 (registration record). First seen at cscdns.net: Sep 26, 2012 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: cscdns.netOct 18, 2013 – Apr 3, 2018cscdns.net (pdns1.cscdns.net, pdns2.cscdns.net) were the nameservers listed for bayer.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Nameservers: cscdns.netNameservers: cscdns.netApr 4, 2018 – Jun 24, 2026Registration records listed cscdns.net nameservers (pdns1.cscdns.net, pdns2.cscdns.net) for bayer.com from Apr 4, 2018 to Jun 24, 2026. Days a zone file covers are shown from the zone file instead.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: pdns1.cscdns.net, pdns2.cscdns.net.Source: ICANN CZDS zone file, snapshot Sep 24, 2026
May 5, 2026 – Oct 26, 2026
Corporation Service Company issued 9 certificates for bayer.com from May 5, 2026, the latest valid until May 12, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
DigiCert IncJun 11, 2026 – Oct 26, 2026DigiCert Inc issued 9 certificates for bayer.com from Jun 11, 2026, the latest valid until May 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Google Trust ServicesAug 31, 2026 – Oct 26, 2026Google Trust Services issued 23 certificates for bayer.com from Aug 31, 2026, the latest valid until Jan 24, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Let's EncryptOct 24, 2026 – Oct 26, 2026Let's Encrypt issued 28 certificates for bayer.com from Oct 24, 2026, the latest valid until Jan 24, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Sectigo LimitedOct 24, 2026 – Oct 26, 2026Sectigo Limited issued 1 certificate for bayer.com from Oct 24, 2026, the latest valid until May 8, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Certificate from Let's EncryptAug 26, 2026 – Oct 16, 2026 (latest)Let's Encrypt certificate valid Aug 26, 2026 to Nov 24, 2026, as seen on Oct 16, 2026.Source: TLS check, Oct 16, 2026
Zone file: Registration records listed cscdns.net nameservers (pdns1.cscdns.net, pdns2.cscdns.net) for bayer.com from Mar 5, 2009 to Jul 4, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
Mar 5, 2009Zone file: bayer.com's nameservers moved from uu.net to cscdns.net at some point between Jul 12, 2007 and Mar 5, 2009. Last seen at uu.net: Jul 12, 2007 (registration record). First seen at cscdns.net: Mar 5, 2009 (registration record). AboutUs holds no nameserver records for the 20 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 8, 2012 – Sep 10, 2012Zone file: Registration records listed verisigndns.com nameservers (a1.verisigndns.com, a2.verisigndns.com, a3.verisigndns.com…) for bayer.com from Jul 8, 2012 to Sep 10, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 8, 2012Zone file: bayer.com's nameservers moved from cscdns.net to verisigndns.com between Jul 4, 2012 and Jul 8, 2012. Last seen at cscdns.net: Jul 4, 2012 (registration record). First seen at verisigndns.com: Jul 8, 2012 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Sep 26, 2012 – Oct 17, 2013Zone file: Registration records listed cscdns.net nameservers (pdns1.cscdns.net, pdns2.cscdns.net) for bayer.com from Sep 26, 2012 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)
Sep 26, 2012Zone file: bayer.com's nameservers moved from verisigndns.com to cscdns.net between Sep 10, 2012 and Sep 26, 2012. Last seen at verisigndns.com: Sep 10, 2012 (registration record). First seen at cscdns.net: Sep 26, 2012 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Jul 1, 2013AboutUs record: “Bayer AG is a German chemical and pharmaceutical company founded in Barmen, Germany in 1863. Today it is headquartered in Leverkusen, North Rhine-Westphali...”Source: AboutUs wiki archive, 2013
Oct 18, 2013 – Apr 3, 2018Zone file: cscdns.net (pdns1.cscdns.net, pdns2.cscdns.net) were the nameservers listed for bayer.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Nov 6, 2013 – Apr 13, 2014AboutUs record: An AboutUs wiki page described bayer.com from Nov 6, 2013 to Apr 13, 2014 (2 edits).Source: AboutUs wiki archive, 2006–2023
Nov 28, 2013Ownership: The registrant name or organization in the registration record changed; first recorded Nov 28, 2013. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jun 29, 2016Ownership: The registrant name or organization in the registration record changed; first recorded Jun 29, 2016. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Apr 4, 2018 – Jun 24, 2026Zone file: Registration records listed cscdns.net nameservers (pdns1.cscdns.net, pdns2.cscdns.net) for bayer.com from Apr 4, 2018 to Jun 24, 2026. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nov 25, 2025 – Oct 26, 2026Certificate: Amazon issued 120 certificates for bayer.com from Nov 25, 2025, the latest valid until May 11, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
May 5, 2026 – Oct 26, 2026Certificate: Corporation Service Company issued 9 certificates for bayer.com from May 5, 2026, the latest valid until May 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jun 11, 2026 – Oct 26, 2026Certificate: DigiCert Inc issued 9 certificates for bayer.com from Jun 11, 2026, the latest valid until May 12, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jun 23, 2026 – Oct 25, 2026AboutUs record: Authority and Safety last refreshed Oct 25, 2026.Source: AboutUs checks
Aug 26, 2026 – Oct 16, 2026Certificate: Let's Encrypt certificate valid Aug 26, 2026 to Nov 24, 2026, as seen on Oct 16, 2026.Source: TLS check, Oct 16, 2026
Aug 31, 2026 – Oct 26, 2026Certificate: Google Trust Services issued 23 certificates for bayer.com from Aug 31, 2026, the latest valid until Jan 24, 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: pdns1.cscdns.net, pdns2.cscdns.net.Source: ICANN CZDS zone file, snapshot Sep 24, 2026
Oct 24, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 28 certificates for bayer.com from Oct 24, 2026, the latest valid until Jan 24, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Oct 24, 2026 – Oct 26, 2026Certificate: Sectigo Limited issued 1 certificate for bayer.com from Oct 24, 2026, the latest valid until May 8, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Registered 1996 · site is live · HTTPS valid
Bayer AG is a German chemical and pharmaceutical company headquartered in Leverkusen. It operates globally across healthcare, nutrition, and high-tech materials, producing pharmaceuticals, crop science products, and specialty chemicals for consumers and industrial customers.
Authority 89/100— ahead of 89% of the August 2026 scored sampleClear
Why this authority score
89 is a percentile: higher than 89% of sites we score.
How it's calculated
Prominence (Tranco rank #6,503)+9
Verified continuity: 30.8 years (RDAP registration)+11
Security & email hygiene+5
Calibration adjustment (published map)+20
Model score: 45/99 — what these reason lines add up to.
Published Authority (percentile): 89/100 — 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 1 days ago); 3/3 transport and email checks available (oldest recorded about 1 days ago). This is evidence coverage, not a probability that a website is safe.
What bayer.com said about itself, 2013
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
2013
Bayer AG is a German chemical and pharmaceutical company founded in Barmen, Germany in 1863. Today it is headquartered in Leverkusen, North Rhine-Westphali...
Site history
Dated record — historical facts always carry their date.
1996
Domain registered (Jan 25, 1996).
2013
First tracked by AboutUs (Nov 6, 2013); profile edited 2 times through 2014.