Verifying against the live site and live WHOIS/DNS…
Common questions
Is organic-chemistry.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 organic-chemistry.org?
Nobody has completed AboutUs's owner verification for organic-chemistry.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.
3 of 4 safety checks passed (Oct 26, 2026).
Registered 2002 · site is live · HTTPS valid
Organic-Chemistry.org
Organic-Chemistry.org is a chemistry reference portal offering a searchable literature index, named reactions database, protecting groups guide, and chemical property database. It serves organic chemistry students, researchers, and professionals. The site is maintained by Reto Mueller and based in Switzerland.
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 24 years ago · on AboutUs since 2006 · 3 registrar changes since Aug 31, 2016 · no ownership change on record since 2016 · last checked Oct 12, 2026.
Registration
RegisteredJul 6, 2002organic-chemistry.org was registered on Jul 6, 2002.Source: RDAP, fetched Aug 29, 2026
AboutUs record
AboutUs wiki pageJun 21, 2006 – Apr 18, 2007An AboutUs wiki page described organic-chemistry.org from Jun 21, 2006 to Apr 18, 2007 (5 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006
Registrar
InterNetworX Ltd. & Co. KGAug 31, 2016 – Feb 10, 2017Registrar InterNetworX Ltd. & Co. KG in the WHOIS and RDAP records held for organic-chemistry.org, from Aug 31, 2016 to Feb 10, 2017.Source: WHOIS / RDAP archive (who.is)Variomedia AG dba puredomain.com
Ownership
Ownership recordsAug 31, 2016 – May 19, 2026Registration records for organic-chemistry.org are held from Aug 31, 2016 to May 19, 2026 (67 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, Feb 2017 – Nov 2019Nameservers: nine.chAug 31, 2016 – Feb 10, 2017Registration records listed nine.ch nameservers (ns1.nine.ch, ns2.nine.ch, ns3.nine.ch) for organic-chemistry.org from Aug 31, 2016 to Feb 10, 2017.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
AmazonAmazonDec 9, 2025 – Oct 26, 2026Amazon issued 1 certificate for organic-chemistry.org from Dec 9, 2025, the latest valid until Jan 6, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
20052010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (21)
Jul 6, 2002Registration: organic-chemistry.org was registered on Jul 6, 2002.Source: RDAP, fetched Aug 29, 2026
Jun 21, 2006 – Apr 18, 2007AboutUs record: An AboutUs wiki page described organic-chemistry.org from Jun 21, 2006 to Apr 18, 2007 (5 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “Includes a searchable literature index, named reactions and protecting groups as well as a chemical database. [English and German]”Source: AboutUs wiki archive, 2006
Jul 1, 2007AboutUs record: “Includes a searchable literature index, named reactions and protecting groups as well as a chemical database.”Source: AboutUs wiki archive, 2007
Aug 31, 2016 – Feb 10, 2017Registrar: Registrar InterNetworX Ltd. & Co. KG in the WHOIS and RDAP records held for organic-chemistry.org, from Aug 31, 2016 to Feb 10, 2017.Source: WHOIS / RDAP archive (who.is)
Aug 31, 2016 – May 19, 2026Ownership: Registration records for organic-chemistry.org are held from Aug 31, 2016 to May 19, 2026 (67 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.
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
Jul 1, 2006
“Includes a searchable literature index, named reactions and protecting groups as well as a chemical database. [English and German]”
Source: AboutUs wiki archive, 2006
Said about itself in 2007Jul 1, 2007“Includes a searchable literature index, named reactions and protecting groups as well as a chemical database.”Source: AboutUs wiki archive, 2007
Current AboutUs recordJul 4, 2026 – Aug 23, 2026 (latest)Authority and Safety last refreshed Aug 23, 2026.Source: AboutUs checks
Variomedia AG dba puredomain.com
Nov 12, 2019 – Dec 21, 2024
Registrar Variomedia AG dba puredomain.com (IANA 1257) in the WHOIS and RDAP records held for organic-chemistry.org, from Nov 12, 2019 to Dec 21, 2024.
Source: WHOIS / RDAP archive (who.is)
INWX GmbHINWX GmbHApr 9, 2025 – Sep 27, 2026Registrar INWX GmbH (IANA 1420) in the WHOIS and RDAP records held for organic-chemistry.org, from Apr 9, 2025 to Sep 27, 2026.Source: WHOIS / RDAP archive (who.is)
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USAOct 12, 2026 – Oct 26, 2026 (latest)Registrar Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA in the registration data recorded, first on Oct 12, 2026 and most recently on Oct 26, 2026.Source: RDAP, fetched Aug 29, 2026
Nameservers: variomedia.deNov 12, 2019 – Mar 19, 2023Registration records listed variomedia.de nameservers (ns1.variomedia.de, ns2.variomedia.de) for organic-chemistry.org from Nov 12, 2019 to Mar 19, 2023.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to variomedia.deNov 12, 2019organic-chemistry.org's nameservers moved from nine.ch to variomedia.de at some point between Feb 10, 2017 and Nov 12, 2019. Last seen at nine.ch: Feb 10, 2017 (registration record). First seen at variomedia.de: Nov 12, 2019 (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: securehost.deJun 3, 2023 – Dec 21, 2024Registration records listed securehost.de nameservers (ns1.securehost.de, ns2.securehost.de) for organic-chemistry.org from Jun 3, 2023 to Dec 21, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to securehost.deJun 3, 2023organic-chemistry.org's nameservers moved from variomedia.de to securehost.de at some point between Mar 19, 2023 and Jun 3, 2023. Last seen at variomedia.de: Mar 19, 2023 (registration record). First seen at securehost.de: Jun 3, 2023 (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)
Nameservers: kreativmedia.chApr 9, 2025Registration records listed kreativmedia.ch nameservers (ns49.kreativmedia.ch, ns50.kreativmedia.ch) for organic-chemistry.org from Apr 9, 2025 to Apr 9, 2025.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to kreativmedia.chApr 9, 2025organic-chemistry.org's nameservers moved from securehost.de to kreativmedia.ch at some point between Dec 21, 2024 and Apr 9, 2025. Last seen at securehost.de: Dec 21, 2024 (registration record). First seen at kreativmedia.ch: Apr 9, 2025 (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: Amazon Route 53Apr 25, 2025 – May 19, 2026Registration records listed Amazon Route 53 nameservers (ns-1197.awsdns-21.org, ns-142.awsdns-17.com, ns-1898.awsdns-45.co.uk…) for organic-chemistry.org from Apr 25, 2025 to May 19, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to Amazon Route 53Apr 25, 2025organic-chemistry.org's nameservers moved from kreativmedia.ch to Amazon Route 53 between Apr 9, 2025 and Apr 25, 2025. Last seen at kreativmedia.ch: Apr 9, 2025 (registration record). First seen at Amazon Route 53: Apr 25, 2025 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Let's Encrypt
Apr 1, 2026 – Oct 26, 2026 (latest)
Let's Encrypt issued 5 certificates for organic-chemistry.org from Apr 1, 2026, the latest valid until Dec 16, 2026. Seen in use on Oct 12, 2026.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 12, 2026
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Aug 31, 2016 – Feb 10, 2017Zone file: Registration records listed nine.ch nameservers (ns1.nine.ch, ns2.nine.ch, ns3.nine.ch) for organic-chemistry.org from Aug 31, 2016 to Feb 10, 2017.Source: From registration records (WHOIS / RDAP archive, who.is)
Nov 12, 2019 – Dec 21, 2024Registrar: Registrar Variomedia AG dba puredomain.com (IANA 1257) in the WHOIS and RDAP records held for organic-chemistry.org, from Nov 12, 2019 to Dec 21, 2024.Source: WHOIS / RDAP archive (who.is)
Nov 12, 2019 – Mar 19, 2023Zone file: Registration records listed variomedia.de nameservers (ns1.variomedia.de, ns2.variomedia.de) for organic-chemistry.org from Nov 12, 2019 to Mar 19, 2023.Source: From registration records (WHOIS / RDAP archive, who.is)
Nov 12, 2019Zone file: organic-chemistry.org's nameservers moved from nine.ch to variomedia.de at some point between Feb 10, 2017 and Nov 12, 2019. Last seen at nine.ch: Feb 10, 2017 (registration record). First seen at variomedia.de: Nov 12, 2019 (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)
Jun 3, 2023 – Dec 21, 2024Zone file: Registration records listed securehost.de nameservers (ns1.securehost.de, ns2.securehost.de) for organic-chemistry.org from Jun 3, 2023 to Dec 21, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
Jun 3, 2023Zone file: organic-chemistry.org's nameservers moved from variomedia.de to securehost.de at some point between Mar 19, 2023 and Jun 3, 2023. Last seen at variomedia.de: Mar 19, 2023 (registration record). First seen at securehost.de: Jun 3, 2023 (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)
Apr 9, 2025 – Sep 27, 2026Registrar: Registrar INWX GmbH (IANA 1420) in the WHOIS and RDAP records held for organic-chemistry.org, from Apr 9, 2025 to Sep 27, 2026.Source: WHOIS / RDAP archive (who.is)
Apr 9, 2025Zone file: Registration records listed kreativmedia.ch nameservers (ns49.kreativmedia.ch, ns50.kreativmedia.ch) for organic-chemistry.org from Apr 9, 2025 to Apr 9, 2025.Source: From registration records (WHOIS / RDAP archive, who.is)
Apr 9, 2025Zone file: organic-chemistry.org's nameservers moved from securehost.de to kreativmedia.ch at some point between Dec 21, 2024 and Apr 9, 2025. Last seen at securehost.de: Dec 21, 2024 (registration record). First seen at kreativmedia.ch: Apr 9, 2025 (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)
Apr 25, 2025 – May 19, 2026Zone file: Registration records listed Amazon Route 53 nameservers (ns-1197.awsdns-21.org, ns-142.awsdns-17.com, ns-1898.awsdns-45.co.uk…) for organic-chemistry.org from Apr 25, 2025 to May 19, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Apr 25, 2025Zone file: organic-chemistry.org's nameservers moved from kreativmedia.ch to Amazon Route 53 between Apr 9, 2025 and Apr 25, 2025. Last seen at kreativmedia.ch: Apr 9, 2025 (registration record). First seen at Amazon Route 53: Apr 25, 2025 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Dec 9, 2025 – Oct 26, 2026Certificate: Amazon issued 1 certificate for organic-chemistry.org from Dec 9, 2025, the latest valid until Jan 6, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 1, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 5 certificates for organic-chemistry.org from Apr 1, 2026, the latest valid until Dec 16, 2026. Seen in use on Oct 12, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 12, 2026
Jul 4, 2026 – Aug 23, 2026AboutUs record: Authority and Safety last refreshed Aug 23, 2026.Source: AboutUs checks
Oct 12, 2026 – Oct 26, 2026Registrar: Registrar Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA in the registration data recorded, first on Oct 12, 2026 and most recently on Oct 26, 2026.Source: RDAP, fetched Aug 29, 2026
Domain registered Jul 6, 2002 — 24 years old.
latest result
Registrar on record: Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA — since Oct 12, 2026; previously INWX GmbH.
latest result
HTTPS request succeeded for www.organic-chemistry.org.
checked Oct 3, 2026
The live front page reads as an education or reference site that publishes free content supported by ads, mainly for specialists in its field.
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 #243,694)+6
Verified continuity: 24.3 years (RDAP registration)+10
Security & email hygiene+3
Calibration adjustment (published map)+9
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.
No caution flags in the available scoring observations; this is not a complete safety assessment
What organic-chemistry.org said about itself, 2006–2007
Quoted from the site's AboutUs wiki page in each year it changed (2 versions). These are the page's own words at the time, not AboutUs's assessment. New words · dropped words
2006
Includes a searchable literature index, named reactions and protecting groups as well as a chemical database. [English and German]
2007
Includes a searchable literature index, named reactions and protecting groups as well as a chemical database.[English and German]
Site history
Dated record — historical facts always carry their date.
2002
Domain registered (Jul 6, 2002).
2026
Domain moved to Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA (previously INWX GmbH) — change first observed Oct 12, 2026.