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cygwin.com

Category: Technology

Scanned: Jun 24, 2026, 01:45 AM UTC · First seen: Jun 24, 2026 · Threat Engines: 0 / 91 · Times Scanned: 1
89 / 100 Trust Score Based on scan findings at the time of analysis
No Threats Found
0 - High Risk50 - Moderate100 - No Threats
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Screenshot of cygwin.com Captured Jun 24, 2026
https://cygwin.com
Screenshot of cygwin.com
26 years
Very Popular - #3,266 Tranco rank (>10M monthly visitors)
Not listed (91 checked)
✓ Valid (TLS)
Red Hat, Inc
Ashburn, United States
Apache/2.4.37 (Red Hat Enterprise Linux) OpenSSL/1.1.1k mod_qos/11.74 mod_wsgi/4.6.4 Python/3.6 mod_perl/2.0.12 Perl/v5.26.3
Unknown
38.145.34.32
Domain & WHOIS Information
Registrar NOM-IQ Ltd dba Com Laude
Registered December 9, 1999
Expires December 9, 2026
Name Servers dns1.p01.nsone.net
DNSSEC Unsigned
Hosting Red Hat, Inc
Reputation & Threat Check 91 security engines checked
File Scan Summary Powered by Quttera Engine
99 files scanned
No threats
98
Low Risk
0
Medium Risk
0
High Risk
1
No threats Low Risk Medium Risk High Risk
cygwin.com/mirrors.html 14.9 KB Flagged: high risk
cygwin.com/git.html 3.9 KB No threats
cygwin.com/donations.html 7.6 KB No threats
cygwin.com/who.html 3.3 KB No threats
cygwin.com/news.html 4.1 KB No threats
cygwin.com/lists.html#cygwin 8.7 KB No threats
cygwin.com/index.html 5.8 KB No threats
cygwin.com/faq.html 229.8 KB No threats
cygwin.com/docbook.css 196 B No threats
cygwin.com/docs.html 3.6 KB No threats
cygwin.com/faq.html#faq.programming.building-cygwin 229.8 KB No threats
Show 88 more...
Quttera flagged high risk files - is this your website?
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External Links & Domains
2541
External Links
5 Flagged
0
Iframes
Clean
128
Referenced Domains
7 Flagged
12
Flagged Resources
Detected
cygwin.cathedral-networks.orgFlagged: Generic Suspicious Object
cygwin.osuosl.orgFlagged: Generic Suspicious Object
ftp.jaist.ac.jpFlagged: Generic Malicious Object
mirror.accum.seFlagged: Generic Suspicious Object
mirror.isoc.org.ilFlagged: Generic Suspicious Object
mirror.lagoon.ncFlagged: Generic Suspicious Object
sunsite.icm.edu.plFlagged: Generic Suspicious Object
https://ftp.jaist.ac.jp/pub/cygwin/Flagged: Generic Malicious Object
https://mirror.accum.se/mirror/cygwin/Flagged: Generic Suspicious Object
https://mirror.isoc.org.il/pub/cygwin/Flagged: Generic Suspicious Object
https://mirror.lagoon.nc/cygwin/Flagged: Generic Suspicious Object
https://sunsite.icm.edu.pl/pub/cygnus/cygwin/Flagged: Generic Suspicious Object
https://ftp.jaist.ac.jp/pub/cygwin/Flagged: Generic Malicious Object
https://mirror.accum.se/mirror/cygwin/Flagged: Generic Suspicious Object
https://mirror.isoc.org.il/pub/cygwin/Flagged: Generic Suspicious Object
https://mirror.lagoon.nc/cygwin/Flagged: Generic Suspicious Object
https://sunsite.icm.edu.pl/pub/cygnus/cygwin/Flagged: Generic Suspicious Object
http://blogs.technet.com/b/filecab/archive/2012/10/09/nfs-identity-mapping-in-windows-server-2012.aspxNot flagged
http://ctm.crouchingtigerhiddenfruitbat.org/pub/cygwin/setup/snapshots/setup-2.774.exeNot flagged
http://cygwin.com/Not flagged
http://cygwin.com/../cygwin-ug-net/ntsec.html#ntsec-setuid-overviewNot flagged
http://cygwin.com/../packages/package_docs.htmlNot flagged
http://cygwin.com/../style.cssNot flagged
http://cygwin.com/1997-april.txt.gzNot flagged
http://cygwin.com/1997-april/author.htmlNot flagged
http://cygwin.com/1997-april/date.htmlNot flagged
http://cygwin.com/1997-april/subject.htmlNot flagged
Show 485 more...
Showing first 500 of 2541 entries.
cygwin.cathedral-networks.orgFlagged: Generic Suspicious Object
cygwin.osuosl.orgFlagged: Generic Suspicious Object
ftp.jaist.ac.jpFlagged: Generic Malicious Object
mirror.accum.seFlagged: Generic Suspicious Object
mirror.isoc.org.ilFlagged: Generic Suspicious Object
mirror.lagoon.ncFlagged: Generic Suspicious Object
sunsite.icm.edu.plFlagged: Generic Suspicious Object
blogs.msdn.microsoft.comNot flagged
blogs.technet.comNot flagged
conemu.github.ioNot flagged
ctm.crouchingtigerhiddenfruitbat.orgNot flagged
cygwin.comNot flagged
cygwin.itefix.netNot flagged
cygwin.mirror.constant.comNot flagged
cygwin.mirror.rafal.caNot flagged
Show 113 more...
cygwin.com Overview

Description of cygwin.com

cygwin.com appears to be the official website for the Cygwin project, a long-established software project that provides a large collection of GNU and open-source tools for Windows along with a compatibility layer offering substantial POSIX functionality. The homepage content focuses on installing and updating Cygwin, browsing packages, reading documentation, and accessing community resources such as mailing lists and IRC channels.

Based on the domain name, page title, and visible content, the site serves as a software distribution and documentation hub rather than a commercial service. It appears to be operated for the Cygwin open-source project and includes links to installers, package mirrors, user guides, FAQs, and source-related resources for developers and technical users.

Safety Assessment for cygwin.com

The available scan data is generally reassuring. At the time of this scan, 0 out of 91 security engines detected the domain, and the checked threat databases and blacklist sources did not report the site for phishing or malware distribution. The domain is also very mature at roughly 26 years old and has a strong traffic profile, which tends to reduce the likelihood of opportunistic abuse.

One malware scan did flag a mirrors page and several external mirror domains using generic heuristic labels. However, these detections appear to be tied to third-party download mirrors referenced by the site rather than to a broad multi-engine consensus against cygwin.com itself. Because the labels are generic and are not corroborated by the wider engine results or by the checked content-malice blacklists, they should be treated as lower-confidence signals at the time of this scan.

Taking the full context into account, cygwin.com appears to be a legitimate long-running software project website. Based on available data, no significant threats were detected at the time of this scan.

Technical Description

The site presents a valid SSL/TLS certificate issued by Let's Encrypt, with certificate expiry shown as 2026-08-09. It resolves to an IP address in Ashburn, United States, and appears to be hosted on infrastructure associated with Red Hat, Inc. The web server identifies as Apache 2.4.37 on Red Hat Enterprise Linux with OpenSSL 1.1.1k and several enabled modules including mod_wsgi and mod_perl.

From a DNS perspective, the domain uses nsone.net nameservers and DNSSEC appears to be unsigned. No DNS-based blacklist listings were reported in this scan. The main technical caution is that one heuristic malware scan flagged a mirror-related page and several referenced mirror hosts, which may warrant occasional review of outbound mirror links, but this alone does not establish compromise of the primary domain.

HTTP Redirect Chain
No redirects detected - direct connection to destination
Website Insights
#3,266
Tranco Rank
Very Popular
Visitors >10M/mo
Category: Technology
Rank History (30 days)
May 18 Jun 23
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This report was generated automatically and is provided for informational purposes only. Results are based on a point-in-time scan and may contain false positives or incomplete data. This does not constitute a security audit or certification. No vendor in the market can guarantee a 100% detection rate. If you believe this report is inaccurate, please submit a dispute.

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