z-lib.dev – Free digital library for eBooks – Analysis on Jun 28, 2025
Analysis performed on Jun 28, 2025
This is a comprehensive technical analysis of z-lib.dev performed on June 28, 2025. The analysis includes DNS configuration, server information, WHOIS data, and HTTP response details.
Purpose and Target: The website explicitly states it is the official Italian portal for downloading over 25 million eBooks, university manuals, and academic articles in PDF format, all free and without advertisements.
Location: The site is served using Cloudflare servers as indicated by the nameservers and server data.
Technology: Confirmed technologies used by the site include Bootstrap, Angular, Google Analytics, Google Tag Manager, and Cloudflare as the server platform.
SEO: The meta description reads: "Z-Library Italia è il portale ufficiale per scaricare oltre 25 milioni di eBook, manuali universitari e articoli accademici in PDF. Tutto gratis, senza pubblicità." No meta keywords are provided.
Security: HTTPS is enabled to secure connections, but SSL certificate details are not implemented or invalid according to the analysis. No other security issues are confirmed.
Content Status: The site contains substantial content with 3,424 words and no indication of being under construction.
Accessibility: The site includes ARIA attributes and proper heading structure but has incomplete alt text (only 33% of images have alt tags), lacks skip navigation links, and has incomplete form input labels, indicating accessibility needs improvement.
Summary: Z-Library Italia is an Italian-language digital library offering free downloads of a large collection of eBooks and academic documents. It is hosted on Cloudflare and built with modern web technologies including Bootstrap and Angular. The site is SEO-optimized with a clear meta description but requires accessibility enhancements. SSL is enabled but certificate information is not properly implemented.
The domain z-lib.dev was registered on January 12, 2023, making it approximately 9 months old. It is currently active, with an expiration date set for January 12, 2026. The registrar is Namecheap Inc., and the domain is configured with Cloudflare nameservers: harmony.ns.cloudflare.com and leonidas.ns.cloudflare.com.
The DNS configuration for z-lib.dev utilizes Cloudflare's nameservers, with multiple A and AAAA records pointing to Cloudflare IPs, ensuring robust hosting infrastructure. The site supports HTTPS, but the SSL certificate is invalid, indicating a need for proper implementation despite the secure connection. The technology stack includes Bootstrap, Angular, and Google services, hosted on Cloudflare's infrastructure, reflecting a modern web development approach.
DNS Records
A Records
Host
IP Address
TTL
@
104.21.89.200
300
MX Records
Host
Mail Server
Priority
TTL
z-lib.dev
mail.z-lib.dev
0
300
NS Records
Host
Target
TTL
z-lib.dev
harmony.ns.cloudflare.com
21600
z-lib.dev
leonidas.ns.cloudflare.com
21600
SSL & Security
HTTPS Status
✅ Enabled
<
strong>HSTS
⚠️ Not Enabled
Security Summary
The website uses HTTPS for secure connections.
Technologies
Server Software
cloudflare
Detected Technologies
Bootstrap, Angular, Google Analytics, Google Tag Manager, Cloudflare
Technology Summary
The website uses technologies including Bootstrap, Angular, Google Analytics, Google Tag Manager, Cloudflare. Server: cloudflare.
Content Information
Content Size
3424 words
Meta Description
Z-Library Italia è il portale ufficiale per scaricare oltre 25 milioni di eBook, manuali universitari e articoli accademici in PDF. Tutto gratis, senza pubblicità.
Content Analysis
The site contains 3424 words of content. It has proper meta tags for SEO.