The On-Page SEO Checklist to Run Before You Publish (2026) | UltraWordCounter

The On-Page SEO Checklist to Run Before You Publish

You finish a post, hit publish, and only later realize the keyword was not in the title, the meta was missing, and two sections had no headings. Every one of those is a quick fix before publishing and a headache after. Here is the on-page checklist to run every time.

Preview: the Pro live checklist

This is a preview of the live SEO checklist inside the Pro tool. This page does not analyze your text. The box below only counts words. The live checklist lives in the SEO Keyword Density Analyzer.

  • โœ“Focus keyword set
  • โœ“Keyword density in the 0.5 to 2.5% range
  • โœ“Focus keyword in the title
  • !Focus keyword in the first paragraph
  • โœ“Focus keyword in a subheading
  • โœ“Title length fits Google
  • โœ—Add a meta description
  • !Content is a little short
  • โœ“Passive voice under 10%
Example output. This page does not analyze.
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๐Ÿ’ก Quick answer: Before publishing, confirm: your focus keyword is in the title, first paragraph, a subheading, and the URL; your title and meta description are the right length; you have one H1 and clean headings; your keyword density is natural; the content is long enough; and it reads clearly. Nine quick checks that catch most on-page mistakes.

Why a pre-publish checklist works

On-page SEO is not hard, but it is easy to forget a piece in the rush to publish. A checklist turns a dozen scattered best practices into a single repeatable pass, so you catch the missing meta or the buried keyword while it takes ten seconds to fix, not after the page is live and underperforming. The pros do not remember everything; they run a list.

Keyword placement

Your focus keyword should appear in the places that carry the most weight: the title, the first paragraph, at least one subheading, and the URL slug. These are the spots search engines and readers look first to understand what the page is about. Then confirm your overall keyword density sits in a natural range, roughly 0.5 to 2.5%, so you are present without stuffing.

Title and meta description

Check that your title tag is about 50 to 60 characters and under Google's pixel cutoff, leads with the keyword, and is compelling. Confirm your meta description exists, runs about 150 to 160 characters, includes the keyword, and gives a reason to click. These two elements decide your click-through rate, so they are worth a deliberate look every time.

Structure and headings

Confirm you have exactly one H1, that your sections use H2s, and that the hierarchy does not skip levels. Make sure at least one heading contains your keyword. Good structure makes the page skimmable for readers and legible to search engines, and it is one of the most common things writers get wrong when they draft quickly.

Readability and length

Give the writing itself a check. Is the reading level appropriate for your audience? Is passive voice under control, roughly under 10% of sentences? Are your sentences and paragraphs a reasonable length? And is the content long enough to cover the topic and compete for the term? Clear, complete content is what keeps readers on the page once they arrive.

Run it every time

The value of a checklist comes from using it consistently, not occasionally. Make it the last step before you publish, every post, no exceptions. Over time the checks become second nature and your drafts arrive at the checklist already clean, but the pass still catches the one thing you missed, which is exactly its job.

This guide is the checklist. The Pro tool runs it live.

You can work through this list by hand, or you can watch it complete itself as you write. The SEO Keyword Density Analyzer runs every check on this page live, keyword placement, title, meta, slug, headings, density, length, and readability, and marks each green, amber, or red so you can see exactly what is left. The preview above shows what that looks like. This page only counts words; the tool runs the checklist.

What is on-page SEO? โ–ผ
On-page SEO is everything you control on the page itself: keyword placement, title and meta, headings, URL, content quality, and readability. It is distinct from off-page factors like backlinks.
What should I check before publishing a post? โ–ผ
Confirm your keyword is in the title, first paragraph, a subheading, and the URL; your title and meta are the right length; you have one H1 and clean headings; density is natural; the content is long enough; and it reads clearly.
Where should my focus keyword appear? โ–ผ
In the title, the opening paragraph, at least one subheading, and the URL slug. These high-value spots signal your topic most strongly to readers and search engines.
Is there a tool that runs this checklist? โ–ผ
Yes. The SEO Keyword Density Analyzer runs a live on-page checklist as you write, marking each item green, amber, or red, free and entirely in your browser.

Run the full on-page checklist live as you write, keyword, title, meta, slug, headings, length, and readability. Free to try, no account, nothing leaves your browser.

Try the SEO Analyzer free โ†’