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KeyCDN Tools vs Sublist3r

Professional comparison and analysis to help you choose the right software solution for your needs.

KeyCDN Tools icon
KeyCDN Tools
Sublist3r icon
Sublist3r

KeyCDN Tools vs Sublist3r: The Verdict

⚡ Summary:

KeyCDN Tools: KeyCDN Tools is a free suite of web performance and SEO tools to help website owners optimize their sites. It includes tools to analyze page speed, check security settings, test mobile-friendliness, and more.

Sublist3r: Sublist3r is an open source subdomain enumeration tool used for penetration testing. It helps security researchers identify subdomains of a target domain that may be vulnerable entry points.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature KeyCDN Tools Sublist3r
Sugggest Score — —
Category Network & Admin Security & Privacy
Pricing — Open Source

Product Overview

KeyCDN Tools
KeyCDN Tools

Description: KeyCDN Tools is a free suite of web performance and SEO tools to help website owners optimize their sites. It includes tools to analyze page speed, check security settings, test mobile-friendliness, and more.

Type: software

Sublist3r
Sublist3r

Description: Sublist3r is an open source subdomain enumeration tool used for penetration testing. It helps security researchers identify subdomains of a target domain that may be vulnerable entry points.

Type: software

Pricing: Open Source

Key Features Comparison

KeyCDN Tools
KeyCDN Tools Features
  • PageSpeed Insights - Analyze page load speed and performance
  • Security Headers - Check security headers implementation
  • Responsive Tester - Test site on multiple devices
  • SEO Tools - Keyword research and analysis
  • HTTP Header Checker - Inspect HTTP response headers
  • SSL Test - Analyze SSL configuration
  • IP Lookup - Lookup IP address locations
Sublist3r
Sublist3r Features
  • Enumerates subdomains using many search engines such as Google, Yahoo, Bing, Baidu and Ask
  • Enumerates subdomains using Netcraft, Virustotal, ThreatCrowd, DNSdumpster and ReverseDNS
  • Bruteforces subdomains using a wordlist
  • Supports wildcards in subdomain searches
  • Multithreaded subdomain enumeration for faster results

Pros & Cons Analysis

KeyCDN Tools
KeyCDN Tools

Pros

  • Free to use
  • Simple and easy to use
  • Provides useful optimization insights
  • Good for basic SEO analysis
  • No login required

Cons

  • Limited features compared to paid tools
  • Basic reporting
  • Can only test one URL at a time
  • No customization options
Sublist3r
Sublist3r

Pros

  • Fast and effective subdomain enumeration
  • Finds subdomains that other tools may miss
  • Easy to install and use
  • Open source and free

Cons

  • May miss subdomains on highly complex domains
  • Requires API keys for some features
  • Not designed for large-scale subdomain enumeration

Pricing Comparison

KeyCDN Tools
KeyCDN Tools
  • Not listed
Sublist3r
Sublist3r
  • Open Source

Related Comparisons

Learn More About Each Product

KeyCDN Tools
KeyCDN Tools
Reviews, pricing & alternatives →
Sublist3r
Sublist3r
Reviews, pricing & alternatives →

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