Scan any URL in seconds. Get a score, grade, and 20 actionable checks.
20 on-page SEO checks across four categories, each weighted by real-world ranking impact.
Verifies a title tag exists, is the right length (50-60 chars), and is not empty.
Checks for a meta description with optimal length (120-160 chars) for click-through.
Ensures a canonical tag exists to prevent duplicate content issues.
Confirms the page is indexable and not accidentally blocked by robots meta tags.
Checks for clean, descriptive URLs without excessive parameters or depth.
Verifies exactly one H1 tag exists and contains relevant content.
Validates proper nesting of H1 through H6 tags without skipped levels.
Checks that all images have descriptive alt attributes for accessibility and SEO.
Ensures the page has enough content to rank (minimum 300 words recommended).
Checks for internal links that help search engines discover and rank related pages.
Verifies og:title, og:description, og:image, and og:url are present for social sharing.
Checks for twitter:card, twitter:title, and twitter:description meta tags.
Confirms a favicon is linked so the site has a recognizable icon in tabs and bookmarks.
Validates the OG image URL is reachable and properly sized (1200x630 recommended).
Checks that the page is served over HTTPS for security and ranking signals.
Measures server response time. Fast pages rank higher and convert better.
Looks for JSON-LD or microdata that enables rich results in search engines.
Confirms a viewport meta tag is set for proper mobile rendering.
Checks that the HTML lang attribute is set to help search engines understand the page language.
Verifies the server uses gzip or brotli compression for faster page delivery.
SEOPeek API gives you the same 20 checks as structured JSON. Build SEO monitoring, CI/CD gates, or dashboards. Starts at $9/mo.
curl "https://seopeek.web.app/api/v1/audit?url=https://example.com" \
-H "Authorization: Bearer YOUR_API_KEY"
# Returns: { score: 87, grade: "B", checks: { ... } }Yes. You can run up to 50 audits per day with no signup, no API key, and no payment required. The free tier includes all 20 on-page SEO checks, a score, and a letter grade.
The audit runs 20 on-page SEO checks across four categories: Essential (title tag, meta description, canonical URL, robots directives), Content (headings, image alt text, word count, internal links), Social (Open Graph tags, Twitter cards, favicon), and Technical (HTTPS, response time, structured data, viewport meta, language attribute).
Each of the 20 checks is weighted by SEO impact. Passing a check earns its full weight toward your score. Warnings earn partial credit. The final score is normalized to 0-100 and mapped to a letter grade: A (90-100), B (80-89), C (70-79), D (60-69), F (below 60).
Yes. The same audit engine is available as a REST API. The free tier gives you 50 audits per day. The Pro plan at $9/month gives you 1,000 audits per day with an API key and priority support. Visit the API docs for details.
Most audits complete in under 2 seconds. The tool fetches the target URL server-side, runs all 20 checks, and returns structured JSON results instantly.
No. This tool audits a single page at a time. Enter any URL and get a detailed on-page SEO report for that specific page. For full-site crawling, a desktop tool like Screaming Frog is better suited. For automated per-page audits in CI/CD or monitoring, use the SEOPeek API.