Owloo - On-Page SEO Inspector

Owloo is a clean, fast, ad-free technical SEO inspector. Open any page, click the icon, and instantly see the on-page SEO signals that matter - no sign-up, no account, no tracking. What's new in 2.9.0 NEW - Rendered vs Raw (Advanced tab): compare the HTML your server sends with the page after JavaScript finishes running, and instantly see which key SEO tags were added, removed or changed in the process. Essential for SPAs and JS-heavy sites. - On-page highlights: mark issues directly on the live page. Highlight nofollow / sponsored / ugc links, external links, images with missing alt text, and outline every heading (H1-H6) with its level. One click clears everything. - Schema builder (Schema tab > Build): create valid JSON-LD for the schema types you're most likely to need - from articles and products to local business, events and FAQs. Fields are pre-filled from the page, required fields are checked, and the finished snippet copies in one click. Rule-based, no AI. IMPROVED - Search result preview: now measures real pixel width, not just characters. Switch between Desktop and Mobile, see exactly where your title and description will be truncated, and get notes when the meta description is missing or og:title differs from the page title. PRIVACY - No new permissions. No data collection. Everything runs locally in your browser; nothing is sent to us. WHAT IT CHECKS - General: core on-page fundamentals - from titles, meta tags and canonical to HTTPS, heading structure and robots directives, plus technical basics like viewport, Open Graph, favicon and charset - grouped as Essential / Recommended / Minor. - Search result preview: pixel-accurate Desktop and Mobile preview with truncation warnings. - Headings: full H1-H6 outline plus a rule-based structure score with concrete suggestions (one H1, logical start, no skipped levels). Outline headings directly on the page. - Links: internal / external / nofollow breakdown, filters, on-page highlighting, and an optional broken-link and redirect checker. - Images: thumbnail and list views, alt-text coverage, missing-alt flags, and on-page highlighting of images without alt. - Structured data: JSON-LD and Microdata, with nested entities expanded (so you see every type, not just the top one) plus rich-result detection. Build new JSON-LD for Article, BlogPosting, Product, Organization, LocalBusiness, FAQPage, BreadcrumbList, WebSite, Person and Event. - Social: Open Graph and Twitter/X card readiness with a full image preview for major social platforms. - Advanced: HTTP status and response headers, canonical and redirect detection, hreflang with return-tag validation, robots.txt and sitemap detection, plus mixed-content, performance and tech-stack hints. - Site tools: one-click deep links to trusted, free external tools for page speed, structured data testing, historical snapshots, domain/DNS lookups and indexing checks. AI-ASSISTED DIAGNOSTICS A dedicated AI tab adds five diagnostic tools grounded in Google's helpful-content and AI-search guidance: - Content Audit - people-first vs commodity verdict, a score, and prioritized fixes. - Content Gaps - estimates the sub-queries an AI search may fan out for your topic and checks coverage. - E-E-A-T and Trust - Experience, Expertise, Authoritativeness and Trust signal check. - Search Intent Match - infers the intent your page targets and whether it satisfies it. - Schema Suggestions - recommends schema.org types and key properties that fit your content. These tools are diagnostic only - they never write or generate content for you. Run them for free with on-device Chrome AI when available (no key required, fully private), or connect your own API key from the AI provider of your choice, including custom and self-hosted endpoints. Requests go directly from your browser to the provider you choose, using your own credentials. Results are AI-assisted estimates. You can export all results to a Markdown report. PRIVACY FIRST - No data collected, no analytics, no ads, no server. Page analysis runs locally in your browser. - Your preferences and any API key are stored only on your device. - Extra access is requested only when you turn on a feature that needs it, never at install: broad site access for link status and hreflang checks, or access to your chosen AI provider's domain when you save a key. Made by KERVAN SEO Agency. Learn more and read the guide at kervan.ae/seo-inspector. Feedback and suggestions: seo@kervan.ae