FREE SEO TOOLS
Free Developer Utilities tools
Utilities for the details: counting text, cleaning URLs and parameters, inspecting headers and DNS.
- Free, no sign-up
- Browser tools upload nothing
- Live checks fetch public pages only
- FreeQuery Parameter AnalyzerSplit a URL's query string into tracking, content-changing and unknown parameters, and get a clean URL.
- FreeWord & Character CounterCount words, characters, sentences and paragraphs as you type, with reading time and sentence-length warnings.
- FreeHTML-to-Text CleanerTurn HTML into clean text or Markdown: scripts and styles removed, headings, lists and links kept.
- FreeHTTP Header AnalyzerSee every response header a URL sends and check the ones that matter for indexing, security and caching.
- FreeDomain Age & RDAP LookupLook up a domain's registration date, expiry, registrar, status and name servers from the registry's RDAP service.
TOOLS
Developer Utilities tools
Free developer SEO utilities: word counter, query parameter analyser and URL tools.
Query Parameter Analyzer
Split a URL’s query string into tracking, content-changing and unknown parameters, and get a clean URL.
Word & Character Counter
Count words, characters, sentences and paragraphs as you type, with reading time and sentence-length warnings.
HTML-to-Text Cleaner
Turn HTML into clean text or Markdown: scripts and styles removed, headings, lists and links kept.
HTTP Header Analyzer
See every response header a URL sends and check the ones that matter for indexing, security and caching.
Domain Age & RDAP Lookup
Look up a domain’s registration date, expiry, registrar, status and name servers from the registry’s RDAP service.
DNS Records Explorer
See a domain’s A, AAAA, CNAME, MX, TXT, NS, CAA and SOA records, with checks on www, SPF and DMARC.
Image File & Optimization Inspector
Check the images on a page: file size, format, caching, width and height, lazy loading and responsive sources.
Website Change Comparison
Compare two versions of a page’s HTML and see every SEO element that changed: title, canonical, robots, headings, links and structured data.
URL Normalizer
Put a list of URLs into one consistent form and find the ones that are the same page written differently.
Bulk HTTP Status Checker
Check up to 25 URLs at once: status code, final URL after redirects, number of redirects and response time.
Need this for a whole website, over time?
The NdovuSEOLabs platform connects your own Search Console, analytics and server logs, and audits every page on a schedule.