Verifying against the live site and live WHOIS/DNS…
Common questions
Is sosmath.com legit or a scam?
sosmath.com was registered May 6, 1999 (27 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 sosmath.com?
Nobody has completed AboutUs's owner verification for sosmath.com. That's true of most sites here — it isn't itself a warning sign.
When was sosmath.com registered?
sosmath.com's registration dates to May 6, 1999 (27 years old), per public registration records. GoDaddy.com, LLC is the registrar on record today.
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 27 years ago · on AboutUs since 2006 · 1 registrar change since Jul 22, 2011 · 1 registrant change since 2007 · last checked Nov 14, 2026.
Registration
RegisteredMay 6, 1999sosmath.com was registered on May 6, 1999.Source: RDAP, fetched Nov 12, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 21, 2006 – Nov 7, 2013An AboutUs wiki page described sosmath.com from Jun 21, 2006 to Nov 7, 2013 (3 edits).Source: AboutUs wiki archive, 2006–2023
Registrar
Network Solutions, LLCNetwork Solutions, LLCJul 22, 2011 – Apr 16, 2025Registrar Network Solutions, LLC (IANA 2) in the WHOIS and RDAP records held for sosmath.com, from Jul 22, 2011 to Apr 16, 2025.Source: WHOIS / RDAP archive (who.is)GoDaddy.com, LLC
Registrant
Registrant recordsDec 28, 2007 – Jun 30, 2026Registration records for sosmath.com are held from Dec 28, 2007 to Jun 30, 2026 (94 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes, renames of the same organization and new contacts at it are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Zone file
Nameservers: cihost.com, propagation.netNameservers: cihost.com, propagation.netDec 28, 2007 – Oct 17, 2013Registration records listed cihost.com, propagation.net nameservers (ns.cihost.com, ns1.lax.propagation.net, ns2.cihost.com…) for sosmath.com from Dec 28, 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)
Certificate
GoDaddy.comGoDaddy.comJul 1, 2025 – Nov 15, 2026 (latest)GoDaddy.com issued 5 certificates for sosmath.com from Jul 1, 2025, the latest valid until Apr 23, 2027. Seen in use on Oct 18, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 18, 2026
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (21)
May 6, 1999Registration: sosmath.com was registered on May 6, 1999.Source: RDAP, fetched Nov 12, 2026
Jun 21, 2006 – Nov 7, 2013AboutUs record: An AboutUs wiki page described sosmath.com from Jun 21, 2006 to Nov 7, 2013 (3 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “Contains tutorials covering algebra, geometry, calculus, differential equations, matrices, and complex variables. Reviews the most important results, techniques and formulas. Presented in worksheet format and require ac…”Source: AboutUs wiki archive, 2006
Dec 28, 2007 – Jun 30, 2026Registrant: Registration records for sosmath.com are held from Dec 28, 2007 to Jun 30, 2026 (94 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes, renames of the same organization and new contacts at it are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Dec 28, 2007 – Oct 17, 2013Zone file: Registration records listed cihost.com, propagation.net nameservers (ns.cihost.com, ns1.lax.propagation.net, ns2.cihost.com…) for sosmath.com from Dec 28, 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)
Said about itself in 2006
Jul 1, 2006
“Contains tutorials covering algebra, geometry, calculus, differential equations, matrices, and complex variables. Reviews the most important results, techniques and formulas. Presented in worksheet format and require ac…”
Source: AboutUs wiki archive, 2006
Current AboutUs recordJun 22, 2026 – Nov 12, 2026 (latest)Authority and Safety last refreshed Nov 12, 2026.Source: AboutUs checks
GoDaddy.com, LLC
May 24, 2025 – Nov 15, 2026 (latest)
Registrar GoDaddy.com, LLC (IANA 146) in the registration data recorded, first on May 24, 2025 and most recently on Nov 15, 2026.
Source: RDAP, fetched Nov 12, 2026
Registrant changeJul 1, 2024The registrant name or organization in the registration record changed; first recorded Jul 1, 2024. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
1 registrant change, 2007–2026
Nameservers: cihost.com, propagation.netOct 18, 2013 – Apr 3, 2018cihost.com, propagation.net (ns.cihost.com, ns1.lax.propagation.net, ns2.cihost.com…) were the nameservers listed for sosmath.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: cihost.com, propagation.netNameservers: cihost.com, propagation.netApr 4, 2018 – Mar 18, 2024Registration records listed cihost.com, propagation.net nameservers (ns.cihost.com, ns1.lax.propagation.net, ns2.cihost.com…) for sosmath.com from Apr 4, 2018 to Mar 18, 2024. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nameservers: pendingrenewaldeletion.comJun 8, 2024 – Jun 9, 2024Registration records listed pendingrenewaldeletion.com nameservers (ns1.pendingrenewaldeletion.com, ns2.pendingrenewaldeletion.com) for sosmath.com from Jun 8, 2024 to Jun 9, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to pendingrenewaldeletion.comJun 8, 2024sosmath.com's nameservers moved from cihost.com, propagation.net to pendingrenewaldeletion.com at some point between Mar 18, 2024 and Jun 8, 2024. Last seen at cihost.com, propagation.net: Mar 18, 2024 (registration record). First seen at pendingrenewaldeletion.com: Jun 8, 2024 (registration record). AboutUs holds no nameserver records for the 3 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: bodis.comJul 1, 2024Registration records listed bodis.com nameservers (ns1.bodis.com, ns2.bodis.com) for sosmath.com from Jul 1, 2024 to Jul 1, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to bodis.comJul 1, 2024sosmath.com's nameservers moved from pendingrenewaldeletion.com to bodis.com between Jun 9, 2024 and Jul 1, 2024. Last seen at pendingrenewaldeletion.com: Jun 9, 2024 (registration record). First seen at bodis.com: Jul 1, 2024 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: abovedomains.comAug 14, 2024 – Jul 16, 2025Registration records listed abovedomains.com nameservers (ns1.abovedomains.com, ns2.abovedomains.com) for sosmath.com from Aug 14, 2024 to Jul 16, 2025.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to abovedomains.comAug 14, 2024sosmath.com's nameservers moved from bodis.com to abovedomains.com between Jul 1, 2024 and Aug 14, 2024. Last seen at bodis.com: Jul 1, 2024 (registration record). First seen at abovedomains.com: Aug 14, 2024 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: GoDaddyJan 15, 2026 – Jun 30, 2026Registration records listed GoDaddy nameservers (ns67.domaincontrol.com, ns68.domaincontrol.com) for sosmath.com from Jan 15, 2026 to Jun 30, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to GoDaddyJan 15, 2026sosmath.com's nameservers moved from abovedomains.com to GoDaddy at some point between Jul 16, 2025 and Jan 15, 2026. Last seen at abovedomains.com: Jul 16, 2025 (registration record). First seen at GoDaddy: Jan 15, 2026 (registration record). AboutUs holds no nameserver records for the 6 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)
Seen in the .com zone fileSep 8, 2026 – Nov 14, 2026 (latest)First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Nov 14, 2026. Nameservers on Nov 14, 2026: ns67.domaincontrol.com, ns68.domaincontrol.com.Source: ICANN CZDS zone file, snapshot Nov 14, 2026
Jul 22, 2011 – Apr 16, 2025Registrar: Registrar Network Solutions, LLC (IANA 2) in the WHOIS and RDAP records held for sosmath.com, from Jul 22, 2011 to Apr 16, 2025.Source: WHOIS / RDAP archive (who.is)
Oct 18, 2013 – Apr 3, 2018Zone file: cihost.com, propagation.net (ns.cihost.com, ns1.lax.propagation.net, ns2.cihost.com…) were the nameservers listed for sosmath.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)
Apr 4, 2018 – Mar 18, 2024Zone file: Registration records listed cihost.com, propagation.net nameservers (ns.cihost.com, ns1.lax.propagation.net, ns2.cihost.com…) for sosmath.com from Apr 4, 2018 to Mar 18, 2024. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Jun 8, 2024 – Jun 9, 2024Zone file: Registration records listed pendingrenewaldeletion.com nameservers (ns1.pendingrenewaldeletion.com, ns2.pendingrenewaldeletion.com) for sosmath.com from Jun 8, 2024 to Jun 9, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
Jun 8, 2024Zone file: sosmath.com's nameservers moved from cihost.com, propagation.net to pendingrenewaldeletion.com at some point between Mar 18, 2024 and Jun 8, 2024. Last seen at cihost.com, propagation.net: Mar 18, 2024 (registration record). First seen at pendingrenewaldeletion.com: Jun 8, 2024 (registration record). AboutUs holds no nameserver records for the 3 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 1, 2024Registrant: The registrant name or organization in the registration record changed; first recorded Jul 1, 2024. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jul 1, 2024Zone file: Registration records listed bodis.com nameservers (ns1.bodis.com, ns2.bodis.com) for sosmath.com from Jul 1, 2024 to Jul 1, 2024.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 1, 2024Zone file: sosmath.com's nameservers moved from pendingrenewaldeletion.com to bodis.com between Jun 9, 2024 and Jul 1, 2024. Last seen at pendingrenewaldeletion.com: Jun 9, 2024 (registration record). First seen at bodis.com: Jul 1, 2024 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Aug 14, 2024 – Jul 16, 2025Zone file: Registration records listed abovedomains.com nameservers (ns1.abovedomains.com, ns2.abovedomains.com) for sosmath.com from Aug 14, 2024 to Jul 16, 2025.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 14, 2024Zone file: sosmath.com's nameservers moved from bodis.com to abovedomains.com between Jul 1, 2024 and Aug 14, 2024. Last seen at bodis.com: Jul 1, 2024 (registration record). First seen at abovedomains.com: Aug 14, 2024 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
May 24, 2025 – Nov 15, 2026Registrar: Registrar GoDaddy.com, LLC (IANA 146) in the registration data recorded, first on May 24, 2025 and most recently on Nov 15, 2026.Source: RDAP, fetched Nov 12, 2026
Jul 1, 2025 – Nov 15, 2026Certificate: GoDaddy.com issued 5 certificates for sosmath.com from Jul 1, 2025, the latest valid until Apr 23, 2027. Seen in use on Oct 18, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 18, 2026
Jan 15, 2026 – Jun 30, 2026Zone file: Registration records listed GoDaddy nameservers (ns67.domaincontrol.com, ns68.domaincontrol.com) for sosmath.com from Jan 15, 2026 to Jun 30, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Jan 15, 2026Zone file: sosmath.com's nameservers moved from abovedomains.com to GoDaddy at some point between Jul 16, 2025 and Jan 15, 2026. Last seen at abovedomains.com: Jul 16, 2025 (registration record). First seen at GoDaddy: Jan 15, 2026 (registration record). AboutUs holds no nameserver records for the 6 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)
Jun 22, 2026 – Nov 12, 2026AboutUs record: Authority and Safety last refreshed Nov 12, 2026.Source: AboutUs checks
Sep 8, 2026 – Nov 14, 2026Zone file: First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Nov 14, 2026. Nameservers on Nov 14, 2026: ns67.domaincontrol.com, ns68.domaincontrol.com.Source: ICANN CZDS zone file, snapshot Nov 14, 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 6, 1999 — 27 years old.
latest result
Registrar on record: GoDaddy.com, LLC — unchanged since AboutUs began tracking (Aug 24, 2026).
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 #387,177)+5
Verified continuity: 27.5 years (RDAP registration)+11
Security & email hygiene+4
Calibration adjustment (published map)+9
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 3 days ago); 3/3 transport and email checks available (oldest recorded about 3 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 sosmath.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
Contains tutorials covering algebra, geometry, calculus, differential equations, matrices, and complex variables. Reviews the most important results, techniques and formulas. Presented in worksheet format and require active participation. Includes practice quizzes and forum board.
Site history
Dated record — historical facts always carry their date.