Free SEO Tool
Free SEO Health Score
Get an instant 0–100 health score for any site. We grade seven public signals — age, HTTPS, on-page SEO, structured data, and crawler discoverability — in a few seconds. No signup, no card.
Rate-limited to 20 checks per hour per IP. Results cached for 24 hours.
How the score is calculated
This is a transparent composite — not a proprietary metric. Every point is earned by a specific public signal we can probe directly. The breakdown is shown with every result so you know exactly what to fix.
Domain age (25)
First snapshot in the Wayback Machine. Maps to ~10 years = 25 pts, linear below.
Live & reachable (15)
HTTP 200, HTTPS by default, homepage response time under 1.5s.
Security headers (10)
TLS plus a valid Strict-Transport-Security header on the homepage.
On-page SEO basics (20)
<title>, meta description, <h1>, canonical link, and html lang attribute.
Structured data & OG (10)
JSON-LD schema and Open Graph tags on the homepage.
Crawler discoverability (10)
/robots.txt resolves, /sitemap.xml resolves (or is declared in robots.txt).
Domain shape (10)
TLD strength, sensible length, no hyphens or digits in the second-level label.
Frequently asked questions
- Is this the same as Domain Rating or Domain Authority?
- No, and we don't pretend to be. Ahrefs DR and Moz DA are computed from proprietary backlink graphs that cost millions to maintain. The SEO Health Score is a free, transparent diagnostic of on-site and infrastructure signals — the things you actually control. It's a fast sanity check, not a replacement for a backlinks-based metric.
- What signals go into the score?
- Seven categories, weighted to 100: domain age (Wayback first-archive date, 25), live HTTPS + speed (15), security headers like HSTS (10), on-page SEO basics — title, meta description, H1, canonical, language (20), structured data + Open Graph tags (10), robots.txt + sitemap (10), and domain shape — TLD, length, no hyphens (10).
- Why is my score lower than I expected?
- The most common reasons are: the site is newer than the Wayback Machine's earliest snapshot (caps you at 75/100), HTTPS is missing or redirects incorrectly, no JSON-LD structured data on the homepage, or no sitemap.xml at the standard location. Each signal's breakdown shows exactly what was found.
- Do you store the URLs I check?
- We cache results for 24 hours in Redis to avoid hammering the sites we probe, keyed by hostname. We don't link checks to identity or sell the data. Rate-limited to 20 checks per IP per hour.
- How is this different from inkplume's paid product?
- inkplume is an SEO content engine — it generates and publishes researched articles to your site every day with internal links and a P2P backlink exchange. This tool is a free preview of one diagnostic. If you want the engine that actually moves the score, that's the product.
The score won't move on its own.
Want to actually move the score?
inkplume publishes a researched, internally-linked article to your site every day and exchanges backlinks with a peer network in the background. The signals graded above are exactly what it improves.
- 30 articles / month
- Backlink exchange
- 8 CMS integrations
- AI-citation ready
$1 today · 3-day trial, 3 articles · Cancel anytime during the trial and the recurring charge never fires
