Network & Security Tools | SEO, IP, DNS and Site Checks

Visitor Value Calculator

Enter your website revenue and traffic to calculate the average visitor value in one click. Use it to evaluate marketing performance and ROI.

HTML Meta Tag Generator

Helps webmasters quickly generate SEO-compliant HTML meta tags to improve search engine visibility.

SSL Heartbleed Vulnerability Scanner

Online scanner to check websites or servers for the CVE-2014-0160 (Heartbleed) vulnerability and assess SSL/TLS security.

SSL FREAK Vulnerability Checker

Scan a specified domain for the SSL FREAK vulnerability (CVE-2015-0204) and assess TLS/SSL security configuration risks.

TLS Ticketbleed Vulnerability Scanner

Scan websites or servers for the TLS Ticketbleed vulnerability (CVE-2016-9244) to assess the risk of memory information leaks.

Web Screenshot Tool

Enter a URL to generate high-quality web screenshots, supporting PNG/JPG format downloads

SSL CCS Injection Vulnerability Scanner

Scan target servers for the CVE-2014-0224 vulnerability, assess SSL communication security, and generate a CVE/CWE risk report.

IPv6 Location Lookup

Accurately find the geolocation of any IPv6 address, including country, city, and ISP details.

CERNET DNS Address Directory

Read web-collected CERNET DNS-related IPv4 records, ranges and location labels. Original source, collection date, public access and availability are unverified.

CIDR Subnet Calculator

Calculate subnet masks, network addresses, broadcast addresses, and usable host ranges from CIDR IP addresses. Ideal for network planning and management.

URL Extractor

Parse and extract valid URLs from text or HTML source code with support for multiple protocols.

Port Checker

Quickly check the open port status of an IP or domain for network diagnostics and security validation.

HTML Source Viewer

View and analyze the HTML source code of any webpage online. A fast and free tool to assist with front-end web development, SEO analysis, and debugging.

URL Redirect Checker

Analyze URL redirect paths and HTTP status codes to diagnose redirect issues and boost your SEO.

IP Geolocation Lookup Tool

Provides real-time IP geolocation lookup services, returning detailed information such as country, state, city, and ISP.

2FA Code Generator & Validator

Generate and verify two-factor authentication (2FA) codes online to secure your accounts.

Spider Crawl Simulator

Simulate search engine spiders to crawl web pages. Check HTTP crawl status, response headers, and view the raw HTML page source online.

URL Unshortener

Paste a short link to quickly reveal the original long URL. Expand shortened URLs safely and check where they redirect before clicking.

IPv6 Test Tool

Check IPv6 support for your network or website and get detailed connectivity and DNS resolution diagnostic reports.

Public DNS IPv4 Address Reference

Find public DNS IPv4 addresses for Cloudflare, Google Public DNS and Quad9, verified against provider documentation.

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