Free SEO Tools and Guides

Check how a page is set up for search engines and AI answers, then fix what matters with step-by-step guides. Free, with no signup.

By Amara Taylor2 free tools5 guidesUpdated September 25, 2026

Quick answer: Start with the free SEO audit: it scores a page’s technical and on-page setup, including title and meta description, headings, images, speed and AI search visibility. Then use the guides below to understand the score and fix the biggest issues first, beginning with titles under about 600 pixels, one clear H1, fast loading and content that answers the query in the opening lines.

SEO tools

What to check first

PriorityCheckWhy it matters
1The page is indexable: no noindex, correct canonical, allowed in robots.txtA page that cannot be indexed cannot rank or be cited in AI answers
2One clear H1 and a unique title under about 600 pxTells search engines and readers what the page is about
3An answer in the first 100 to 150 wordsSearch features and AI answers favor pages that answer directly
4Fast loading and stable layout (Core Web Vitals)Affects user experience and page experience signals
5Descriptive internal links to and from related pagesHelps discovery and shows topical depth
6Images with alt text and sensible file sizesAccessibility, image search and speed

On-page SEO checklist

  • Title tag with the main topic first, unique across the site
  • Meta description that gives a reason to click
  • Short, readable URL
  • Single H1 matching the title’s intent
  • Question-shaped H2s that match what people search
  • Named author and a visible last-updated date
  • Structured data where it earns a rich result: Organization, Breadcrumb, Article, Product
  • Internal links up to the category page and across to related pages

How AI answers pick sources

Google’s AI features are grounded in pages from its normal index, using the same ranking and quality systems as classic search, and they often fan a question out into related sub-queries. Pages that rank well, answer clearly, cover a topic in depth and state verifiable specifics are the ones most likely to be cited. There is no separate AI-only markup to add.

Glossary

TermMeaning
IndexableAllowed and able to be stored in a search engine’s index.
CanonicalThe preferred URL when similar pages exist.
Core Web VitalsGoogle’s loading, interactivity and visual stability metrics.
SERPSearch engine results page.
Topical authorityDepth of coverage across a subject, shown by connected, useful pages.

Guides that explain the maths

Frequently asked questions

Is the SEO audit tool free?

Yes. Enter a page address and you get a scored report with no signup.

What does the SEO audit check?

On-page SEO, title and meta tags, heading structure, images, Core Web Vitals and signals related to AI search visibility.

What is a good SEO score?

Scores are relative to each tool’s checks. Aim to fix every critical issue and most warnings rather than chase a perfect number.

How long should a title tag be?

Under about 600 pixels, usually 50 to 60 characters.

Do I need an llms.txt file for AI search?

Google has said its AI features do not need special files or markup; good standard SEO is what makes pages eligible.

How often should I audit my site?

After major changes and at least every few months for key pages.