On-Page SEO Checkers
On-page tags are the parts of your HTML that search engines read first to understand a page: the <title>, the meta description, the canonical link, the heading outline and the alt text on images.
Each checker below fetches one URL and tests one of these elements against Google Search Central guidance, then tells you what to change. None of them predict rankings. They catch the mistakes that stop a page being understood or shown well in results.
Article Publish Date
Finds the published date in Article schema, meta tags or a <time> element.
Canonical Tag Checker
Checks for a canonical tag and that it resolves to an absolute URL.
H1 Checker
Checks the page has an H1 heading and flags pages that use more than one.
Header Tag Checker
Checks the H1–H6 hierarchy is sequential and no heading is empty.
HTML Lang Attribute Checker
Checks <html> declares a valid lang attribute.
Image Alt Tag Checker
Scans every image on the page for a missing alt attribute.
Keyword Density & Consistency Tool
Shows how your top keywords are distributed across title, meta and headings.
Meta Description Checker
Checks a meta description is present and within the recommended length.
SERP Preview Tool
Shows how the page may appear in search results.
Title Tag Checker
Checks the title tag exists and is within the recommended length.
Website Word Count Tool
Counts the visible words on a page and flags pages with very little text.