373 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
All viewport mobile meta tags of a page as a name → content map, with a count and a list of expected tags that are missing (for Open Graph/Twitter). One group per call for social-preview and SEO checks. $0.01 per page.
All all named meta tags of a page as a name → content map, with a count and a list of expected tags that are missing (for Open Graph/Twitter). One group per call for social-preview and SEO checks. $0.01 per page.
On-page SEO quick audit for a single URL with a 0-100 score: title and meta-description presence and lengths, H1 count and heading order, canonical tag (self-referencing?), meta robots/noindex, Open Graph and Twitter car...
Sitemap freshness: loads the site's sitemap (index expanded, up to 5 child maps), counts URLs, finds the newest and oldest lastmod dates, how many URLs changed in the last 7 and 30 days, and, when called repeatedly, how...
Get the metadata of a web page: title, description, canonical URL, Open Graph and Twitter card fields. Use for link previews, SEO metadata extraction or social card data.
Analyze a URL: reachability, HTTP status, redirects, TLS, response headers and basic SEO. Use to audit a link, check if a page is up or diagnose a website.
Extract page metadata from a public URL: title, meta description, canonical, language, OpenGraph/Twitter card tags, favicon, headings (h1-h3) and up to 200 absolute links.
Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no...
Deep page intelligence report for any URL: SEO checks with scored issues, heading outline, image alt coverage, internal/external link analysis, JSON-LD structured data, technology fingerprints, word count and reading tim...
Multi-page site audit: crawls up to 6 pages of a domain (homepage plus the most-linked pages), checks titles, meta descriptions, h1s, image alts, canonicals, viewport, response times and sitemap/robots presence, then ret...
How many pages does a site declare? Counts URLs across sitemap.xml and any sitemap index (up to 5000 counted), reports sitemaps visited and newest lastmod. A fast estimate of site size. $0.01 per site.
Sitemap URL list: fetches sitemap.xml (or the URL you give), expands sitemap indexes up to two levels, and returns the page URLs (up to 500 shown), total count, sitemaps visited and lastmod range. Crawl planning and site...
Redirect audit for a domain: how http://, https://, www and apex variants each resolve, where they end, hop counts and status codes, and whether all four converge on a single canonical HTTPS URL. Catch split traffic and...
Title and description change detection: records a page's title and meta description on each call and tells you when either changes compared with your previous call (kept 90 days). Catch rebrands, hijacks and SEO edits. $...
Deterministic 101-domain Topological PageRank (UR 1-100), Core Web Vitals (LCP/CLS/TTFB), JSON-LD schema & WCAG 2.1 AA accessibility audit ($0.05 USDC on Base Mainnet).
101-Domain Silo Link Equity, Topological PageRank, /llms.txt AI-search readiness & white-label sandbox preview audit ($0.05 USDC on Base Mainnet).
Mobile LCP, Core Web Vitals, LocalBusiness/Organization JSON-LD schema check, and live side-by-side white-label preview scorecard ($0.05 USDC on Base Mainnet).
Publish a permanent, server-side rendered (SSR) contextual article with JSON-LD schema, DoFollow attribution, /llms.txt indexing & Ed25519 receipt across 93 canonical domains in 12 verticals ($1.00 USDC).
Publish a technical Cloud, Bare-Metal NVMe, DevOps, or AI Agent infrastructure article on WinWinHost.com with JSON-LD TechArticle schema, /llms.txt citation & Ed25519 receipt ($1.00 USDC).
Deterministic FinTech, B2B invoicing, and accounting domain SEO, Core Web Vitals, JSON-LD SoftwareApplication schema & WCAG 2.1 AA audit ($0.05 USDC on Base Mainnet).
robots.txt fetched and parsed: every user-agent group with its allow/disallow rules and crawl-delay, declared sitemaps, and whether the file exists at all. Understand a site's crawl policy before fetching it. $0.01 per s...
Heading structure audit: all H1-H6 with text, H1 count (should be one), skipped levels, empty headings, and the outline as a tree. Fix on-page SEO and accessibility structure. $0.01 per page.
hreflang map: every language and region alternate a page declares (link rel=alternate hreflang), the x-default, and consistency checks (self-reference present, duplicates). See which markets a site serves. $0.01 per page...
Structured data extractor: every JSON-LD block on a page parsed, with the schema.org types found (Organization, Product, Article, FAQPage, BreadcrumbList, LocalBusiness...), key fields (name, price, rating, author, date)...