Zlib.pub Reviews: Check Scam or Safe? Very Low Trust 11/100
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Zlib.pub Suspicious Website

October 26, 2025 at 1:49 PM
Suspicious Website
Checked by Website Reputation Checker
Table of Contents
Danger Zone
Risky Territory
Caution Advised
Trusted but Verify
Safe & Secure

Zlib.pub → Safety Check

First checked 22 days ago
Suspicious Website
Website content analyzed
Method: automated checks.
Reputation footprint:
Moderate traffic ranking (#629,115)

How we scored zlib.pub

On-page:
Books, Google Tag Manager
SSL Certificate:
Issued by WE1 on October 24, 2025. Valid for: 3 months (QUIC)
Positive signals
  • Established Domain
Risk indicators
  • Blacklisted
  • Low Scamadviser Score
Last checked October 26, 2025 at 1:49 PM by Gridinsoft Trust Model v2.2.8

What is Zlib.pub?

Zlib.pub operates as a suspicious website with multiple red flags that compromise its trustworthiness and user safety. The platform exhibits concerning characteristics including misleading information, questionable operational practices, or potential malware distribution that poses significant risks to visitors.

Key warning signs include unclear ownership information, lack of proper contact details, suspicious content quality, and potential security vulnerabilities. The website may host malicious software, engage in deceptive practices, or collect personal data without proper safeguards.

While Zlib.pub may not be an outright scam, the combination of these factors makes it unreliable and potentially dangerous. Users should exercise extreme caution when interacting with this site and avoid providing any personal information or downloading files from this untrustworthy platform.

This domain was registered 4 years ago through the company Sav.com, LLC and had the owner 3495bcf1839c6374. Complaint contact not found.

Is zlib.pub safe?

— Unfortunately, not likely.

🚨 Gridinsoft blocks this website because it was classified as suspicious website.

As of October 26, 2025, Zlib.pub has a very low trust score of 11/100 according to our algorithm. Through the security analysis, it has been identified as a potential suspicious website. Our detection system has found multiple risk indicators, and we recommend avoiding this website.

Why is zlib.pub marked "Suspicious Website"?

Gridinsoft evaluates zlib.pub, focusing on suspicious content indicators (Blacklisted, Low Scamadviser Score), hosting technology and infrastructure, SSL certificate status, website reputation across multiple databases. We weigh these indicators to calculate the trust score.

Note: Automated systems are not perfect — while the evidence suggests risk, there is still a chance the site is legitimate. We recommend you check the website using detailed analysis or by contacting the company directly through verified channels.

Zlib.pub Digital Footprints

Books
Google Tag Manager

The zlib.pub website uses Google Tag Manager to add and update tracking tags on its website.

Established Domain

The domain has maintained active status for an extended period, indicating operational stability and established web presence. This longevity for zlib.pub suggests legitimate business operations and sustained user engagement over time.

Blacklisted

Gridinsoft Internet Security classified zlib.pub as unsafe.

Low Scamadviser Score

Independent security assessment from Scamadviser indicates zlib.pub has received a low trust rating, suggesting potential security risks or operational concerns requiring user caution.

Color Guide
  • Requires special attention: Indicates areas with potential risks or issues that need careful review.

  • Positive indicators: Highlights trusted elements or reliable features that enhance user confidence.

  • Exercise caution: Signals areas where user data is involved or points that may require additional care.

  • Neutral: Provides information without indicating risk or reliability, serving as general context only.

Security Risk Detected

11 / 100
Suspicious Website
October 26, 2025 at 1:49 PM

Security Advisory: This website has been flagged as suspicious and may pose security risks. Exercise caution when visiting or sharing personal information.

Domain Information

Domain Age
4.1 years
Registrant
3495bcf1839c6374
Registrar Sav.com, LLC
Top Level Domain
.pub
Domain Extension
Nameservers jakub.ns.cloudflare.com
fay.ns.cloudflare.com

Technical Details

IP Address 104.21.33.91
Hosting Provider
AS13335 Cloudflare, Inc.
San Francisco, US
Global Rank
#629,115
DNS Records 104.21.33.91 A
172.67.189.124 A
2606:4700:3035::ac43:bd7c AAAA
2606:4700:3037::6815:215b AAAA
fay.ns.cloudflare.com SOA

Content Analysis

Original website content:

Zlib.pub | Free Books, Articles and Documents

ZLIB is a powerful search engine for Ebook PDF. You can search and download Ebook PDF files for free without register

Mentioned hosts (6):
zlib.pub cdnjs.cloudflare.com fonts.googleapis.com www.googletagmanager.com www.google-analytics.com fonts.gstatic.com

Security Analysis

Detection Signatures:

These signatures are used to generate the security fingerprint below.

Books Google Tag Manager Established Domain Blacklisted Low Scamadviser Score
Security Fingerprint:

Unique identifier based on site analysis

Suspicious websites exhibit untrustworthy characteristics including questionable content, deceptive operational practices, or malware presence that compromise user security and platform reliability.

How popular is this website?

Popularity
629 115
+138 156
Zlib.pub ranks relatively low, which often implies limited traffic. Though a lower profile does not make a site inherently malicious, bad actors sometimes favor less-monitored domains. You should remain alert, and avoid providing sensitive information if in doubt.

Gridinsoft API Get free access to monitor suspicious domains through our API.

Warning Summary

This section provides a detailed breakdown of security warnings from multiple trusted sources.

We gather verdicts from a range of security providers to assess the safety of the site. If any of these sources flag the site as potentially harmful, it will be marked with a warning. Each entry includes the source and their findings, allowing you to see the different assessments. This transparency ensures you have all the information needed to evaluate the site's risk.

If no warnings are issued, the site is considered safe based on the analysis from all checked sources. For more details, please review the individual findings below.

BitDefender
Clean
CRDF
Clean
Google Safebrowsing
Clean
Phishing Database
Clean
Netcraft
Clean
Criminal IP
Clean
OpenPhish
Clean
ESET
Clean
CyRadar
Clean
Sophos
Clean

Zlib.pub blocked? Check the safety report created on October 26, 2025

How to block Zlib.pub?

Gridinsoft has the capability to block zlib.pub domain without requiring further user intervention.

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process.

Exclusion

If you wish to visit a blocked "zlib.pub" and exclude it from being blocked, you can add it to the exclusions list. Here's how to do it:

  1. Open Gridinsoft Anti-Malware;
  2. Click the Tools tab;
  3. Click the Ignore List;
  4. Click the Internet vertical tab and press "Add...";
  5. Enter "zlib.pub" and click Add button.

Now this domain should appear in your Ignore List.

Are You the Owner?

If you own Zlib.pub, we'd love to hear from you. If you'd like to challenge the trust score assigned, we're happy to take a closer look. You can write to us legal(at)gridinsoft.com. However, please be prepared to provide proof of your business's legitimacy. Introduce yourself with your real name. Please note, we never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.

Leave a review

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Your score for zlib.pub
11
points /100
The score is based on a 1-100 scale, with 100 being the most reputable.
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