zlib.net favicon

zlib.net

Category: Technology

Scanned: Jul 10, 2026, 04:07 AM UTC · First seen: Jul 10, 2026 · Threat Engines: 0 / 91 · Times Scanned: 1
99 / 100 Trust Score Based on scan findings at the time of analysis
No Threats Found
0 - High Risk50 - Moderate100 - No Threats
Fresh scan recommended
Last scanned 26 days ago - security status may have changed since then.
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Screenshot of zlib.net Captured Jul 10, 2026
https://zlib.net
Screenshot of zlib.net
24 years
Very Popular - #4,207 Tranco rank (>10M monthly visitors)
Not listed (91 checked)
✓ Valid (TLS)
A2 Hosting, Inc
Phoenix, United States
Apache
Unknown
85.187.148.2
Domain & WHOIS Information
Registrar GoDaddy.com, LLC
Registered March 16, 2002
Expires March 16, 2029
Name Servers NS1.A2HOSTING.COM
DNSSEC Unsigned
Hosting A2 Hosting, Inc
Reputation & Threat Check 91 security engines checked
File Scan Summary Powered by Quttera Engine
72 files scanned
No threats
72
Low Risk
0
Medium Risk
0
High Risk
0
No threats Low Risk Medium Risk High Risk
zlib.net/zlib_faq.html#faq41 25.1 KB No threats
zlib.net/zlib_faq.html#faq27 25.1 KB No threats
zlib.net/zlib_faq.html#faq06 25.1 KB No threats
zlib.net/zlib_faq.html#faq09 25.1 KB No threats
zlib.net/manual.html 103.0 KB No threats
zlib.net/zlib_faq.html#faq23 25.1 KB No threats
zlib.net/zlib_faq.html#faq16 25.1 KB No threats
zlib.net/zlib_faq.html#faq35 25.1 KB No threats
zlib.net/zlib_faq.html#faq21 25.1 KB No threats
zlib.net/zlib_faq.html#faq29 25.1 KB No threats
Show 62 more...
External Links & Domains
94
External Links
All Clean
0
Iframes
Clean
21
Referenced Domains
All Clean
0
Flagged Resources
None Detected
http://gailly.netNot flagged
http://gailly.net/Not flagged
http://marknelson.us/1997/01/01/zlib-engine/Not flagged
http://sourceforge.net/projects/acroformtool/Not flagged
http://tools.ietf.org/html/rfc1950Not flagged
http://tools.ietf.org/html/rfc1951Not flagged
http://tools.ietf.org/html/rfc1952Not flagged
http://www.faqs.org/faqs/compression-faq/Not flagged
http://www.gnupg.org/Not flagged
http://www.gzip.org/#faq11Not flagged
http://www.ibiblio.org/pub/packages/solaris/sparc/Not flagged
http://www.ijs.si/software/snprintf/Not flagged
http://www.info-zip.org/Not flagged
http://www.pdflib.com/Not flagged
http://www.sunfreeware.comNot flagged
Show 79 more...
7asecurity.comNot flagged
creativecommons.orgNot flagged
en.wikipedia.orgNot flagged
fosstodon.orgNot flagged
gailly.netNot flagged
github.comNot flagged
i.creativecommons.orgNot flagged
madler.netNot flagged
marknelson.usNot flagged
sourceforge.netNot flagged
stackoverflow.comNot flagged
tools.ietf.orgNot flagged
www.faqs.orgNot flagged
www.gnupg.orgNot flagged
www.gzip.orgNot flagged
Show 6 more...
zlib.net Overview

Description of zlib.net

zlib.net appears to be the official home site for zlib, a widely used open-source data compression library. The page title, on-page text, and linked technical resources indicate that the site provides project information, release notes, documentation, and download-related materials for the zlib software library used by developers and software projects.

Based on the visible content, the project is associated with long-established maintainers and contributors in the software development community, including references to Mark Adler and Jean-loup Gailly. The site’s presentation is simple and documentation-focused rather than commercial, which is consistent with a long-running open-source infrastructure or project homepage.

Safety Assessment for zlib.net

The scan results appear favorable. At the time of this scan, the domain was flagged by 0 out of 91 security engines, the malware scan reported 0 flagged files out of 72 checked, and the referenced blacklist and threat-database checks did not indicate known phishing or malware listings. External links and referenced domains were also scanned without flagged results in the provided data.

Additional context supports a lower-risk assessment: the domain has been registered for roughly 24 years, has a strong traffic ranking, and the visible page content matches a legitimate software project homepage rather than a login lure, giveaway page, or impersonation pattern. Based on available scan data, no significant threats were detected at the time of this scan.

Technical Description

The site uses a valid SSL/TLS certificate issued by Let's Encrypt, with expiry shown as 2026-08-15. It is hosted on Apache at IP address 85.187.148.2 with hosting attributed to A2 Hosting in Phoenix, United States. The domain uses A2 Hosting nameservers and appears to be operating as a normal live website rather than a parked or placeholder domain.

DNSSEC is unsigned, which is common but means DNS responses do not appear to have DNSSEC validation protection. No direct technical security issues were indicated in the provided malware, blacklist, or link-scan results at the time of this scan.

HTTP Redirect Chain
No redirects detected - direct connection to destination
Website Insights
#4,207
Tranco Rank
Very Popular
Visitors >10M/mo
Category: Technology
Rank History (30 days)
Jun 1 Jul 9
No cookies data available
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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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