Free SEO and answer engine tools.
Check technical signals, build clean metadata, and prepare content for search engines, answer engines, and people.
50 tools found
Domain research
Live site audits
ai seo audit tool
Check the technical and content signals that help search and answer engines understand a public page.
broken link checker
Scan the links on one public page and verify up to 30 unique destinations without crawling an entire site.
heading checker
Inspect H1 through H6 headings in document order and spot missing, empty, repeated, or skipped levels.
image alt text checker
List page images with their resolved source, alt text, dimensions, and accessibility status.
internal link checker
Review resolved destinations, anchor text, nofollow values, fragments, and repeated internal links.
noindex checker
Read robots meta tags and X-Robots-Tag headers after redirects to reveal the final indexing directives.
link analyzer
Inventory internal and external destinations, anchor text, rel values, fragments, and repeated links from one page.
Crawling and indexing
ai crawler checker
Check access for AI search, assistant, and training crawlers.
canonical tag checker
Compare a page canonical with its final URL and generate a clean tag.
redirect checker
Trace every redirect hop and inspect the final response.
http header checker
Inspect response status, redirects, indexing, caching, and security headers.
hreflang generator
Generate alternate links or check the tags live on a page.
sitemap validator
Check XML structure, nested files, URLs, dates, and duplicates.
robots.txt generator
Build a clean file, validate live rules, and check crawler access.
llms.txt generator
Inspect a public site and prepare two editable files.
xml sitemap generator
Validate up to 5,000 URLs and generate editable sitemap XML with optional dates, change frequency, and priority.
Search appearance
meta tag checker
Inspect titles, descriptions, canonicals, robots rules, and page metadata.
open graph checker
Read Open Graph and Twitter tags with a clean share preview.
schema markup generator
Build and validate editable JSON-LD for common page types.
serp preview tool
Preview page titles and descriptions at desktop and mobile widths.
keyword density checker
Count a target phrase and review frequent terms without a fake score.
robots meta tag generator
Choose indexing, link following, snippet, image, and cache directives and copy the matching HTML or header value.
canonical url generator
Clean a preferred page URL, remove tracking parameters and fragments, and generate the canonical link element.
seo title generator
Combine a topic, value, audience, and brand into editable title patterns with visible character counts.
meta description generator
Combine a page topic, differentiator, proof point, and action into editable description patterns.
faq schema generator
Create valid FAQPage JSON-LD from your own questions and answers. Reorder entries, validate required fields, and copy or download the schema without signup.
meta tag generator
Turn a title, description, canonical URL, and robots choice into clean HTML metadata.
Content analysis
word counter
Measure words, sentences, paragraphs, unique terms, and repeated phrases directly in your browser.
character counter
Inspect text length with and without whitespace, plus UTF-8 byte size and line distribution.
reading time calculator
Calculate reading time from an adjustable words-per-minute rate and compare a spoken delivery estimate.
readability checker
Calculate Flesch Reading Ease and grade level with the sentence, word, and syllable inputs shown.
text diff checker
See added, removed, and unchanged lines with a compact change summary you can copy into a review.
duplicate content checker
Measure exact phrase overlap between two pasted texts and inspect the shared passages behind the similarity result.
sentence counter
Measure sentences, words per sentence, short and long sentences, and the longest lines in a draft.
paragraph counter
Measure paragraph count, words per paragraph, empty blocks, and the longest sections in a draft.
word frequency counter
Count every normalized word, filter common terms, and export a ranked frequency table.
Keyword planning
keyword clustering tool
Cluster a keyword list using transparent token overlap and inspect why each phrase joined a group.
keyword list cleaner
Trim whitespace, normalize case, remove duplicates, sort phrases, and report exactly what changed.
keyword extractor
Find frequent single terms and two-word phrases after transparent stop-word filtering.
keyword cannibalization checker
Paste a URL-to-keyword map and identify exact or normalized phrases targeting more than one page.