Free tools on the same engines as our API.
Look up any domain or page in seconds. When you need it in code or at volume, the same call is one API request away.
WHOIS Lookup
See who registered a domain, the registrar, creation and expiry dates, status codes and name servers. Personal contact details are redacted by default.
Open toolRDAP Lookup
Structured registration data straight from the registry's RDAP server: registrar, IANA ID, creation and expiry dates, status, name servers and DNSSEC.
Open toolDNS Lookup
Resolve A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records through Cloudflare and Google DNS-over-HTTPS at the same time, and see whether they agree.
Open toolDomain Availability Checker
Check at the registry level whether a domain name is registered. Works for every TLD with RDAP, with a WHOIS fallback for the rest.
Open toolURL to Markdown
Paste a URL and get the main content as clean Markdown, without navigation, ads or cookie banners. Ready for ChatGPT, Claude and RAG pipelines.
Open toolKeyword Density Checker
See which words and two- or three-word phrases a page repeats most, with counts and density. Stopwords are removed so the real topics stand out.
Open toolHTML Source Viewer
Fetch the raw HTML of any public page with its final URL, status code, redirect chain and key headers such as X-Robots-Tag and Last-Modified.
Open toolWebsite Technology Checker
Detect the CMS, framework, analytics, ad networks, CDN, payments and 120+ other technologies on any website, plus its Google Analytics, GTM and AdSense IDs.
Open toolSSL Certificate Checker
Check a site's SSL/TLS certificate: issuer, validity, days until expiry, covered names and the negotiated TLS version.
Open toolSPF, DKIM and DMARC Checker
Grade a domain's email security from A to F: SPF, DMARC policy, DKIM selectors, MTA-STS, TLS-RPT and BIMI, with plain-English fixes.
Open toolSubdomain Finder
List subdomains seen in public Certificate Transparency logs, with first and last certificate dates.
Open toolPhone Number Validator
Check if a phone number is valid and get its international format, country, line type (mobile, landline, VoIP), original carrier and time zone.
Open toolEmail Address Checker
Validate syntax, domain, MX records, disposable and role addresses, and catch common typos, without sending any email.
Open toolWebsite Contact Finder
Scan a business website's homepage and contact pages for email addresses, phone numbers and social profiles, with the page each was found on.
Open toolMeta Tag Checker
See a page's title, meta description, canonical, robots directives, Open Graph and Twitter tags, JSON-LD structured data and heading outline, with SEO issues flagged.
Open toolLink Extractor
List all links on a page with anchor text, internal or external, and nofollow, sponsored and UGC attributes.
Open toolHTTP Header Checker
Follow a URL's redirect chain and inspect its response headers, caching, compression and security headers, graded A to F.
Open toolSitemap Extractor
Find a site's sitemaps from robots.txt and list their URLs with last-modified dates. Handles sitemap indexes and gzip.
Open toolAI Readiness Checker
Audit a page for Generative Engine Optimization: AI crawler access in robots.txt, llms.txt, server-rendered content, structured data and answer-first writing. Get a score and fixes.
Open toolWebsite Screenshot Tool
Capture any public page in real Chrome with JavaScript, at desktop size. Free, no sign-up.
Open toolKeyword Suggestion Tool
See what Google suggests as people type, a quick source of long-tail keyword ideas.
Open toolBing Search Checker
Run a Bing search and see the organic results with positions, titles and snippets.
Open toolIP Lookup
Find the network, ASN, country, hosting provider and reverse DNS of any IP address or domain. Uses registry RDAP data and live DNS.
Open toolCompany Website Finder
Type a company name and get its official domain, with a confidence score and the alternatives we considered. Directories, marketplaces and social sites are excluded.
Open toolYouTube Search
See YouTube search results for any keyword with views, channel, duration and publish date, ready to export as JSON or CSV.
Open toolApp Store Lookup
Rating, ratings count, release notes, price, size, genres and screenshots of any iPhone, iPad or Mac app. Enter the numeric app ID from its App Store URL.
Open toolGoogle Play App Details
Installs, rating, rating histogram, last update, version, content rating, developer contact and data-safety summary of any Android app.
Open toolGitHub Repo Stats
Stars, forks, contributors, languages, license, latest release, last commit and README of any public GitHub repository, without a token.
Open toolGitHub Trending
The repositories gaining the most stars on GitHub today, overall or by programming language, with stars gained and contributors.
Open toolTikTok Profile Stats
Followers, likes, video count, bio and recent videos of any public TikTok account, without logging in.
Open toolBroken Link Checker
Crawl up to 5 pages of a site (more with the API) and check every internal and external link, with the page each broken link was found on.
Open toolPage Speed Test
Load any page in a real Chrome browser and get Core Web Vitals (LCP, CLS, TBT), load time, page weight, requests by type and a list of fixes.
Open toolArticle Extractor
Get the clean article text, title, author, publish date, lead image, word count, reading time and readability score of any news or blog page.
Open toolShopify Product Scraper
Check if a store runs on Shopify and list its products with prices, variants, SKUs, stock status and images from the store's public catalog.
Open toolGoogle Trends Explorer
Interest over time, interest by region and related queries for up to five comma-separated keywords, as clean JSON.
Open toolDomain Authority Checker
See any website's Gridlode Authority score (0-100), its global rank among 135 million domains, PageRank and how many domains link to it, from the Common Crawl web graph.
Open toolBacklink Checker
List the domains that link to any website, best first, with each referring domain's authority score and the total number of referring domains.
Open toolSimilar Sites Finder
Discover competitors and alternatives: sites that the same websites link to, scored by how often they're cited together.
Open toolBing Maps Business Search
Search Bing Maps for businesses by type and place and get names, addresses, phones, websites, ratings and opening hours.
Open toolGoogle Patents Search
Search patents and applications worldwide by keyword: number, title, assignee, inventor, priority, filing and publication dates, and a link to the PDF.
Open tool