Canonical Tag Checker
Read the canonical tag, resolve relative canonicals, compare it to the final URL, and flag missing or cross-page targets.
Free SEO tools
Useful SEO tools that do the work before signup.
These are not lead magnets with fake results. URL tools inspect live pages, generator tools produce copy-ready output, and analyzer tools use the exports visitors already have.
No paid SEO API requiredLive URL fetches, deterministic generators, CSV analyzers.
- Free tools solve the first problem.
- PageOptimized keeps history, workflows, Xavier, and proof.
- No fake traffic, backlink, or SERP databases.
Canonical Tag Checker for people who need an answer, not another export.
Canonical Tag Checker is built for a focused SEO question: Read the canonical tag, resolve relative canonicals, compare it to the final URL, and flag missing or cross-page targets. The tool gives a practical answer from the URL, XML, CSV, or text you provide so you can decide what to fix, write, compare, or investigate next.
What this tool checks
- The input you provide, using transparent rules.
- Signals that can be calculated without paid third-party databases.
- Warnings that point to the next practical action.
- Copy-ready output where the tool generates markup, rules, or planning artifacts.
How to use it
- Paste the requested input.
- Run the tool.
- Review the result and warnings.
- Use the output for the next SEO action or move it into a PageOptimized project.
How to read the result
- Use passes as confirmation, not as a reason to stop reviewing the page.
- Treat warnings as prioritization signals.
- Pair one-off results with project history when the decision affects clients or recurring work.
What it will not fake
- It does not fake proprietary data.
- It does not replace a full project audit.
- It does not store recurring history outside PageOptimized.
Move from one answer to a repeatable process.
A free tool is useful for one decision. PageOptimized is for the recurring version of that decision: saving the check, attaching it to a project, turning evidence into work queue tasks, keeping history, and showing clients what changed without rebuilding the story in a spreadsheet.
Put this in PageOptimizedQuestions this page answers
What is the Canonical Tag Checker?
Canonical Tag Checker is a free PageOptimized tool that helps with read the canonical tag, resolve relative canonicals, compare it to the final url, and flag missing or cross-page targets.
Who should use the Canonical Tag Checker?
Use it when you need a quick SEO answer before opening a full project, building a report, or assigning work to a team member.
Does this tool use paid SEO API data?
No. The free tools are designed around live page fetches, pasted exports, deterministic generators, and transparent calculations instead of hidden paid databases.
How is this different from working in a spreadsheet?
A spreadsheet can hold rows, but it does not understand the process around the rows. PageOptimized connects checks, evidence, work items, workflows, reports, and project history.