Free SEO & Web Tools
IP address lookup, DNS record checker, HTTP header inspector, Open Graph preview, UTM builder, keyword density analyzer and Wi-Fi QR code generator. Tools for SEO professionals, web developers and marketers.
Checking What's Actually Happening, Not Guessing
A surprising share of SEO and web troubleshooting comes down to the same question asked in different ways: what is actually being returned right now, and does it match what's intended? A page can look correct in a browser while its headers, redirects or social preview are quietly broken underneath — problems invisible until someone specifically checks for them. These eight tools cover that checking work directly, split between raw network diagnostics and the more marketing-facing side of SEO, and since each one queries the live internet directly rather than a cached snapshot, the answer reflects whatever is actually true right now, not whatever was true the last time someone checked.
Network Diagnostics
DNS Lookup queries live public resolvers to return every record type for a domain — the first stop when email isn't arriving (MX records), domain ownership needs verifying (TXT records), or a DNS change hasn't propagated yet. HTTP Header Checker inspects the actual response headers a URL returns, which is how a 301-versus-302 redirect mistake, a missing cache header, or an absent security header like Content-Security-Policy actually gets caught, rather than assumed to be fine. My IP Address answers the simplest but most asked networking question directly, with geolocation attached, and Internet Speed Test measures real download and upload throughput from the browser itself rather than an app that needs installing first. Between the four of them, most "is it my connection or is it the server" questions get an actual answer instead of a shrug — a distinction worth getting right early, since chasing the wrong side of that question wastes real time for both a developer and whoever they're troubleshooting for.
SEO and Campaign Tools
Open Graph Preview solves a specifically frustrating problem — seeing exactly how a page will look when shared on Facebook, Twitter or LinkedIn before actually posting it, instead of publishing blind and hoping the title, description and image all pulled through correctly. UTM Parameter Builder keeps campaign tracking URLs consistent and clean rather than hand-typed and inevitably inconsistent across a marketing team. Sitemap Viewer parses a site's sitemap.xml directly, useful for auditing what a site is actually telling search engines exists, and Keyword Density Checker measures how often a term actually appears in a page's text — a genuinely useful sanity check against keyword stuffing, even though modern SEO cares far more about relevance and intent than raw density alone. None of these four require signing into an analytics dashboard or a paid SEO suite first — they answer one specific question directly and get out of the way.
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