Free domain & website tools
Small, free utilities for domains, DNS, SSL, and websites, from the team behind Expiroo. Instant results, no account required.
Check when a domain expires, look up its WHOIS record, inspect DNS records, verify an SSL certificate, trace a 301 redirect, or see whether a site is up, right in your browser. Every tool queries live data, not a cached list, and none of them ask you to sign up.
Domain tools
Look up, check, compare, and track domains and their registration details.
Domain Lookup
Registrar, expiry date, DNS records, and SSL status, all in one report. Free, 3 lookups a day, no account needed.
Domain Expiry Checker
See exactly how many days are left before a domain expires. Free, 3 checks a day, no account needed.
Whois Lookup
Look up a domain's full registration record: registrar, key dates, and status. Free, no account needed.
Domain Availability Checker
Check whether a domain is available to register. Free, no account needed.
Domain Age Checker
See exactly how old any domain is, from its original registration date. Free, no account needed.
Domain Watch
Watch a taken domain and get an email the moment it becomes available to register. Free.
Domain Comparison Tool
Compare two domains side by side: age, expiry, registrar, nameservers, and SSL status. Free, no account needed.
Domain Name Cost Comparison
Compare domain name prices across registrars: year 1, renewal, transfer, and 5-year total cost. Free, no account needed.
Domain ROI Calculator
Calculate net profit and ROI for flipping or holding a domain, renewal fees included. Free, runs in your browser.
Domain Name Generator
Enter a keyword, get availability-checked domain suggestions across popular TLDs. Free, no account needed.
Short Domain Name Generator
Turn a keyword or two words into short, brandable domain ideas. Instant, unlimited, no signup.
Bulk Domain Availability Checker
Paste a list of domains and check availability for all of them at once. Free, up to 10 domains per check.
CSV Portfolio Expiry Checker
Upload a CSV of domains and get expiration dates back for all of them at once. Free, up to 10 domains per check.
DNS & nameserver tools
Inspect DNS records, nameservers, and how DNS changes propagate.
DNS Lookup
Look up A, AAAA, MX, TXT, NS, CNAME, and CAA records for any domain. Free, no account needed.
DNS Propagation Checker
Check a domain's DNS records from four independent resolvers side by side. Free, no account needed.
Nameserver Checker
Find out which DNS provider manages a domain's nameservers. Free, no account needed.
SSL & security tools
Check SSL certificates and the security a site sends to browsers.
SSL Certificate Checker
Check any website's SSL/TLS certificate expiration date and issuer. Free, no account needed.
SSL Chain of Trust Visualizer
See a website's full SSL certificate chain, from leaf to intermediate to root. Free, no account needed.
HTTP Security Headers Checker
Check whether a website sends HSTS, CSP, X-Frame-Options, and other security headers. Free, no account needed.
Mixed Content Checker
Find HTTP resources loading on an HTTPS page. Free, no account needed.
Email tools
Check mail routing and sender reputation for a domain.
Website & SEO tools
Uptime, redirects, links, and on-page checks for any website.
SEO Checker
Analyze any web page for technical errors and on-page SEO problems, with tips to fix each one. Free, no account needed.
GEO Checker
Check whether AI answer engines like ChatGPT and Gemini can crawl and cite your page. Free, no account needed.
Website Uptime Checker
Check whether a website is up or down right now, status code and response time included. Free, no account needed.
301 Redirect Checker
Check for a 301 redirect and see a URL's full chain, every hop and status code, to its final destination. Free.
Broken Link Checker
Scan a page's outbound links and find the ones that are dead. Free, no account needed.
Meta Tags & Open Graph Previewer
See a page's title, description, and Open Graph tags, plus search-result and social-card previews. Free, no account needed.
robots.txt Tester
Fetch and validate a site's robots.txt, and check whether a specific path is allowed for Googlebot. Free, no account needed.
Sitemap Link Extractor
Pull every URL out of a sitemap.xml, sitemap indexes included. Free, no account needed.
Keyword on Page Checker
Check whether a word or phrase appears on a live page right now. Free, no account needed.
Free tools, answered
Are these tools really free?
Yes. Every tool on this page is free to use with no account. A few of the live-lookup tools have a small daily limit to prevent abuse; signing in to a free Expiroo account raises it.
Do I need to create an account?
No. You can use every tool here without signing up. An account is only needed if you want Expiroo to monitor a domain or website for you continuously and send alerts.
How accurate are the results?
Each tool queries live data at the moment you run it, RDAP and WHOIS for domains, DNS-over-HTTPS for records, and a real TLS handshake for certificates, so results reflect the current state, not a cached list.
Can I use these tools for client websites?
Yes. They work on any domain or public URL, so agencies, developers, and freelancers use them to check client sites. There is nothing to install and no code to add.
Free checks are a snapshot. Monitoring is peace of mind.
These tools tell you the state of a domain or site right now. Expiroo watches them for you continuously, domain expiry, uptime, SSL, and DNS, and alerts you by email, Telegram, WhatsApp, or webhook before anything breaks.
Start monitoring for freeNo charge during your 7-day trial.
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