13 tools. One job each.
Runs in your browser.

Score any URL out of 100 in seconds — 45 checks across indexing, titles, content, mobile, and links.

• 0-100 weighted score across six SEO categories
• Pixel-accurate title & snippet measurement for any language
• Critical-issue banner: noindex, missing title/viewport, mixed content

Audit any page for missing, duplicate, or oversized meta tags — title, description, canonical, OG, Twitter.

• 10 checks covering every ranking and social meta tag
• Runs in your browser — no server, no data leaves your device
• One-click copy for every tag value

See exactly how your page will look in Google — title, URL, and snippet — before you publish.

• Pixel-accurate title & description rendering
• Desktop and mobile previews
• FAQ & list-style snippet support

Find keyword stuffing, gaps, and over-optimization before Google does.

• Single, bi-, and tri-gram frequency
• Stopword removal & n-gram length filters
• Stuffing & thin-content flags

Generate valid JSON-LD for Article, FAQ, HowTo, Product, LocalBusiness, Organization, and Recipe.

• 7 schema types including FAQ, Product, HowTo, LocalBusiness
• Prefill Article fields from any live URL
• Inline copy-to-clipboard JSON-LD

Validate XML sitemaps, robots.txt directives, and indexing rules in one click.

• Full XML sitemap & sitemap index validation
• Absolute URL, scheme, encoding & size checks
• robots.txt tester with per-bot rule simulation

Find broken heading sequences, duplicate H1s, and skipped levels — the audits most SEO tools miss.

• 5 focused checks: single H1, level skips, empty headings, duplicate text
• Runs 100% in your browser — no server, no data leaves your device
• Paste raw HTML or fetch any live URL

Score any H2 + answer block for the Google position-0 box — predicts the SERP format and rewrites your H2.

• Auto-detects paragraph, list, and table snippet formats
• SERP format prediction for any search query before you write
• H2 rewrite suggestions to match Google's question-phrasing rules

Look up any domain's registration date and age in seconds — no signup, runs in your browser.

• Exact WHOIS registration date via public RDAP database
• Age displayed in years, months, and total months
• Trust-signal verdict — what this domain age means for SEO

Generate a valid robots.txt file in seconds — pick your crawler rules, add your paths, and copy the result.

• Build rules for any common crawler — Googlebot, Bingbot, GPTBot, and more
• Wildcard and end-anchor pattern support ($) generated correctly
• Live syntax check flags malformed directives as you type

Resolve any domain to its IPv4 and IPv6 addresses instantly — no signup, runs in your browser.

• All IPv4 (A) records returned simultaneously
• All IPv6 (AAAA) records returned simultaneously
• Cloudflare DNS-over-HTTPS — entirely in your browser

Check if an email sender's server IP is on 10 major spam blocklists before outreach.

• Checks 10 major public email blocklists (DNSBLs)
• MX lookup + IP resolution in one step
• Clear listed / clean / error verdict for each blocklist

Score every outbound link on any page out of 100. Follow/nofollow, position, and domain age combined.

• All outbound links on a page scored 0–100
• Four signals combined: nofollow, position, anchor text, domain age
• Sorted by score — highest-value links first