Postly Rank · On Page SEO Checker

On page SEO checker

The Postly Rank On Page SEO Checker grades a page against the keyword it should rank for and turns the gaps into a ranked list of ideas: what to change, why, the expected impact and the effort. Enter one URL, or a whole domain to check its top pages at once.

Free plan, no credit card. Already have an account? Open On Page SEO Checker in Postly Rank.

Who is On Page SEO Checker for?

  • Writers and editors updating an existing article
  • Site owners who want a to-do list per page, not a wall of metrics
  • Agencies tracking on-page tasks per client page

What does On Page SEO Checker do?

Seven idea categories

Strategy, Backlinks, Technical SEO, User Experience, SERP Features, Semantic and Content. Every idea says why, how, its impact and its effort.

One page or a whole domain

A URL checks one page (the keyword is detected if you leave it empty). A domain checks its top pages with editable keywords.

Top 10 benchmarking

Compares your page with the strongest pages for the same keyword in the Join Postly Index: length, headings, entities and markup.

Idea tasks

Mark ideas done or ignored, assign them and set due dates. Paid plans can re-check pages weekly and get alerts when ideas change.

How On Page SEO Checker works

  1. Enter a URL or domain

    Add the target keyword, or let the checker suggest one from the page.

  2. Pick location and pages

    Choose country, language and device, then confirm the pages and keywords to check.

  3. Work through the ideas

    Start with high-impact, low-effort ideas, or open the SEO Writer to rewrite a section.

Where does the data come from?

Numbers come from the Join Postly Index: the pages our own crawler, JoinPostlyBot, has crawled. Popularity, Difficulty and positions are Join Postly Index estimates, not Google search volume or Google rankings. Your page itself is fetched live by JoinPostlyBot when you run the check.

Learn more about our crawler on the JoinPostlyBot page.

On Page SEO Checker: Free vs Rank Pro vs Rank Agency

Free forever, or Rank Pro at $15/month and Rank Agency at $49/month (USD).

On Page SEO CheckerFreeRank ProRank Agency
Page checks per day550200
Pages per domain run550200
Weekly re-check and alerts
Export and PDF

A single URL uses 1 page check; a domain run uses 1 check for every 5 pages. Limits are per workspace per day unless stated. Rank Pro and Rank Agency are in early access: ask at info@joinpostly.com.

On Page SEO Checker FAQ

What is the difference between Site Audit and the On Page SEO Checker?

Site Audit crawls your whole site for technical problems such as broken links and redirects. The On Page SEO Checker looks at one page and its target keyword and suggests content, semantic and SERP-feature improvements.

Do I need to know my target keyword to check a page?

No. Leave the keyword empty and the checker detects the most likely one from the page's title, headings and text. You can edit it before collecting ideas.

How many pages can I check for free with the On Page SEO Checker?

The Free plan includes 5 page checks a day, and a domain run covers up to 5 pages. Rank Pro allows 50 checks a day.

Related Postly Rank tools

Try On Page SEO Checker free

Postly Rank works with every Join Postly plan, including Free. No credit card needed.