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Common questions
Is pgroup.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 pgroup.com?
Nobody has completed AboutUs's owner verification for pgroup.com. That's true of most sites here — it isn't itself a warning sign.
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Lifeline · pgroup.com over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 34 years ago · on AboutUs since 2006 · 1 registrar change since Jan 22, 2012 · 1 registrant change since 2007 · last checked Nov 1, 2026.
Registration
RegisteredFeb 28, 1992pgroup.com was registered on Feb 28, 1992.Source: RDAP, fetched Aug 29, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 21, 2006 – Nov 5, 2013An AboutUs wiki page described pgroup.com from Jun 21, 2006 to Nov 5, 2013 (19 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006
Registrar
Network Solutions, LLCJan 22, 2012 – May 20, 2014Registrar Network Solutions, LLC (IANA 2) in the WHOIS and RDAP records held for pgroup.com, from Jan 22, 2012 to May 20, 2014.Source: WHOIS / RDAP archive (who.is)Safenames Ltd
Registrant
Registrant recordsOct 4, 2007 – Jun 9, 2026Registration records for pgroup.com are held from Oct 4, 2007 to Jun 9, 2026 (110 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: st.comOct 4, 2007 – Jun 2, 2013Registration records listed st.com nameservers (delta.dmz-ap.st.com, delta.dmz-eu.st.com, delta.dmz-us.st.com) for pgroup.com from Oct 4, 2007 to Jun 2, 2013.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
DigiCert IncDigiCert IncJul 7, 2025 – Nov 5, 2026DigiCert Inc issued 26 certificates for pgroup.com from Jul 7, 2025, the latest valid until May 13, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (18)
Feb 28, 1992Registration: pgroup.com was registered on Feb 28, 1992.Source: RDAP, fetched Aug 29, 2026
Jun 21, 2006 – Nov 5, 2013AboutUs record: An AboutUs wiki page described pgroup.com from Jun 21, 2006 to Nov 5, 2013 (19 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “The Portland Group, Inc. (a.k.a. PGI) is the premier supplier of software compilers and tools for parallel computing, known on markets as PGI® products.”Source: AboutUs wiki archive, 2006
Oct 4, 2007 – Jun 9, 2026Registrant: Registration records for pgroup.com are held from Oct 4, 2007 to Jun 9, 2026 (110 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
Oct 4, 2007 – Jun 2, 2013Zone file: Registration records listed st.com nameservers (delta.dmz-ap.st.com, delta.dmz-eu.st.com, delta.dmz-us.st.com) for pgroup.com from Oct 4, 2007 to Jun 2, 2013.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 1, 2006
“The Portland Group, Inc. (a.k.a. PGI) is the premier supplier of software compilers and tools for parallel computing, known on markets as PGI® products.”
Source: AboutUs wiki archive, 2006
Said about itself in 2008Jul 1, 2008“The Portland Group (PGI) specializes in providing standout compilers and tools for parallel computing for the high performance technical computing (HPC) market. PGI is distinctive because its compilers don't rely on ext…”Source: AboutUs wiki archive, 2008
Current AboutUs recordJul 10, 2026 – Aug 29, 2026 (latest)Authority and Safety last refreshed Aug 29, 2026.Source: AboutUs checks
Safenames Ltd
Oct 31, 2016 – Nov 2, 2026 (latest)
Registrar Safenames Ltd (IANA 447) in the registration data recorded, first on Oct 31, 2016 and most recently on Nov 2, 2026.
Source: RDAP, fetched Aug 29, 2026
Registrant changeOct 31, 2016The registrant name or organization in the registration record changed; first recorded Oct 31, 2016. 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: worldnic.com
Aug 9, 2013 – Oct 17, 2013
Registration records listed worldnic.com nameservers (ns31.worldnic.com, ns32.worldnic.com) for pgroup.com from Aug 9, 2013 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 worldnic.comAug 9, 2013pgroup.com's nameservers moved from st.com to worldnic.com at some point between Jun 2, 2013 and Aug 9, 2013. Last seen at st.com: Jun 2, 2013 (registration record). First seen at worldnic.com: Aug 9, 2013 (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: worldnic.comOct 18, 2013 – Jan 1, 2016worldnic.com (ns31.worldnic.com, ns32.worldnic.com) were the nameservers listed for pgroup.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Jan 1, 2016 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Nameservers: DNS Made EasyFeb 5, 2016 – Apr 3, 2018DNS Made Easy (ns1.p28.dynect.net, ns2.p28.dynect.net, ns3.p28.dynect.net…) were the nameservers listed for pgroup.com at every ICANN zone-file snapshot AboutUs holds from Feb 5, 2016 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
DNS moved to DNS Made EasyFeb 5, 2016pgroup.com's nameservers moved from worldnic.com to DNS Made Easy between Jan 1, 2016 and Feb 5, 2016. Last seen at worldnic.com: Jan 1, 2016 (ICANN zone-file snapshot). First seen at DNS Made Easy: Feb 5, 2016 (ICANN zone-file snapshot).Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → ICANN zone-file snapshot)
Nameservers: DNS Made EasyNameservers: DNS Made EasyApr 4, 2018 – Jun 9, 2026Registration records listed DNS Made Easy nameservers (azuredns1.nvidia.com, azuredns2.nvidia.com, ns5.dnsmadeeasy.com…) for pgroup.com from Apr 4, 2018 to Jun 9, 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 fileJul 28, 2026 – Nov 1, 2026 (latest)First seen in the .com zone file records AboutUs holds on Jul 28, 2026; latest sighting Nov 1, 2026. Nameservers on Nov 1, 2026: dns1.p09.nsone.net, dns2.p09.nsone.net, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com….Source: ICANN CZDS zone file, snapshot Nov 1, 2026
Jul 1, 2008
AboutUs record: “The Portland Group (PGI) specializes in providing standout compilers and tools for parallel computing for the high performance technical computing (HPC) market. PGI is distinctive because its compilers don't rely on ext…”Source: AboutUs wiki archive, 2008
Jan 22, 2012 – May 20, 2014Registrar: Registrar Network Solutions, LLC (IANA 2) in the WHOIS and RDAP records held for pgroup.com, from Jan 22, 2012 to May 20, 2014.Source: WHOIS / RDAP archive (who.is)
Aug 9, 2013 – Oct 17, 2013Zone file: Registration records listed worldnic.com nameservers (ns31.worldnic.com, ns32.worldnic.com) for pgroup.com from Aug 9, 2013 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)
Aug 9, 2013Zone file: pgroup.com's nameservers moved from st.com to worldnic.com at some point between Jun 2, 2013 and Aug 9, 2013. Last seen at st.com: Jun 2, 2013 (registration record). First seen at worldnic.com: Aug 9, 2013 (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)
Oct 18, 2013 – Jan 1, 2016Zone file: worldnic.com (ns31.worldnic.com, ns32.worldnic.com) were the nameservers listed for pgroup.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Jan 1, 2016 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Feb 5, 2016 – Apr 3, 2018Zone file: DNS Made Easy (ns1.p28.dynect.net, ns2.p28.dynect.net, ns3.p28.dynect.net…) were the nameservers listed for pgroup.com at every ICANN zone-file snapshot AboutUs holds from Feb 5, 2016 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Feb 5, 2016Zone file: pgroup.com's nameservers moved from worldnic.com to DNS Made Easy between Jan 1, 2016 and Feb 5, 2016. Last seen at worldnic.com: Jan 1, 2016 (ICANN zone-file snapshot). First seen at DNS Made Easy: Feb 5, 2016 (ICANN zone-file snapshot).Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → ICANN zone-file snapshot)
Oct 31, 2016 – Nov 2, 2026Registrar: Registrar Safenames Ltd (IANA 447) in the registration data recorded, first on Oct 31, 2016 and most recently on Nov 2, 2026.Source: RDAP, fetched Aug 29, 2026
Oct 31, 2016Registrant: The registrant name or organization in the registration record changed; first recorded Oct 31, 2016. 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
Apr 4, 2018 – Jun 9, 2026Zone file: Registration records listed DNS Made Easy nameservers (azuredns1.nvidia.com, azuredns2.nvidia.com, ns5.dnsmadeeasy.com…) for pgroup.com from Apr 4, 2018 to Jun 9, 2026. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 7, 2025 – Nov 5, 2026Certificate: DigiCert Inc issued 26 certificates for pgroup.com from Jul 7, 2025, the latest valid until May 13, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jul 10, 2026 – Aug 29, 2026AboutUs record: Authority and Safety last refreshed Aug 29, 2026.Source: AboutUs checks
Jul 28, 2026 – Nov 1, 2026Zone file: First seen in the .com zone file records AboutUs holds on Jul 28, 2026; latest sighting Nov 1, 2026. Nameservers on Nov 1, 2026: dns1.p09.nsone.net, dns2.p09.nsone.net, ns5.dnsmadeeasy.com, ns6.dnsmadeeasy.com….Source: ICANN CZDS zone file, snapshot Nov 1, 2026
1 of 2 safety checks passed (Nov 5, 2026).
Registered 1992 · AboutUs could not get a response over HTTPS when it checked (Nov 5, 2026)
PGroup.com Supplier of software compilers and tools for parallel computing
The Portland Group (PGI) develops compilers and tools for parallel computing in high-performance technical computing (HPC). The company serves developers and organizations building Linux clusters and HPC systems, offering native compilers for Fortran, C, and C++ languages. PGI's compilers are distinctive for not relying on external pre-processors and supporting multiple processor architectures with a single compiler.
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 Feb 28, 1992 — 34 years old.
latest result
Registrar on record: SafeNames Ltd. — unchanged since AboutUs began tracking (Aug 2, 2026).
Authority 44/100— ahead of 44% of the August 2026 scored sampleClear
Why this authority score
44 is a percentile: higher than 44% of sites we score.
How it's calculated
Prominence (Tranco rank #566,174)+5
Verified continuity: 34.7 years (RDAP registration)+11
Security & email hygiene+2
Calibration adjustment (published map)+6
Model score: 24/99 — what these reason lines add up to.
Published Authority (percentile): 44/100 — 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 68 days ago); 3/3 transport and email checks available (oldest recorded about 68 days ago). This is evidence coverage, not a probability that a website is safe.
Recorded HTTPS check did not confirm a valid connection
What pgroup.com said about itself, 2006–2008
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
The Portland Group, Inc. (a.k.a. PGI) is the premier supplier of software compilers and tools for parallel computing, known on markets as PGI® products.
2008
The Portland Group (PGI) specializes in providing standout compilers and tools for parallel computing for the high performance technical computing (HPC) market. PGI is distinctive because its compilers don't rely on external pre-processors, and boast of only one compiler for multiple processors.rewritten
Site history
Dated record — historical facts always carry their date.