Domain, DNS & IP Tools

Get WHOIS information for domain.

Evaluate the trust impact of hyphens and numbers in a domain name and get improvement tips.

Find geographic location, country, city, ISP, and network info for any IP address.

Detect blacklist hints without querying lists - heuristic abuse detection.

Detect the dominant language of a website by analyzing visible page content and language signals.

Detect CDN usage using DNS, IP ranges, and HTTP header heuristics.

Check SPF, DKIM, and DMARC records using DNS TXT lookup.

Scan HTTP response headers to detect potential IP exposure or origin leaks.

Check SSL certificate validity, issuer, expiry date, and SAN coverage.

Find domain from IP address.

Find and group domains hosted on the same IP address using DNS-based techniques.

Calculate subnet mask, network, broadcast, and host range for IPv4 CIDR blocks.

Score domain memorability heuristics for brand-friendly naming.

Generate typo variations for brand protection and lookalike domain monitoring.

Check how old a domain is.

Find geographic location of multiple IPs.

Generate domain name ideas based on keywords (suggestions only).

Analyze SEO friendliness based on domain length, structure, hyphens, numbers, and readability signals.

Extract top keywords and phrases from a domain homepage for quick SEO insights.

Detect risky exposed service hints like SSH, FTP, databases, and admin ports using safe heuristics.

Show your current IP address.

Reverse DNS validation - check PTR records for email deliverability.

Check if an IP is public, private, reserved, loopback, or link-local.

Validate IPv4 and IPv6 addresses.

Follow redirect hops and display status codes and final destination.

Measure IP and server response latency without using any external APIs.

Convert domain name to IP address.

Estimate the ASN (Autonomous System Number) of an IP using routing hints.

Show redirect chains for a root domain (http/https, www/non-www) to diagnose SEO and performance issues.

Check if domains share same Class C IP.

View A, AAAA, CNAME, MX, TXT, and NS DNS records.

Find all DNS records for domain.

Detect domain age and history signals from the site itself (no APIs).

Convert an IPv4 start/end range into the smallest set of CIDR blocks.

Detect whether a domain uses IPv4, IPv6, or dual-stack networking.

Find PTR hostname for an IPv4 or IPv6 address.

Detect cross-domain canonical misuse across multiple URLs and domains.

Find out where domain is hosted.

Check whether a DNS change has propagated across Cloudflare and Google resolvers. A, AAAA, CNAME, MX, TXT, NS. Runs in your browser. Free.