Web SEO Analysis

This tool analyzes a webpage to quantify on-page SEO quality and technical soundness. It accepts structured signals such as title_tag length, meta_description length, heading counts, canonical tag presence, schema markup, image alt coverage, internal and external links, and performance indicators, then returns a single SEO score and a prioritized set of fixes. Users include content managers, SEO specialists, webmasters, and marketing analysts who need repeatable assessments for individual pages or large content sets. The approach emphasizes reproducibility, benchmarking, and decision-ready output, rather than ad hoc critiques.
Core Logic & Features: The system treats page signals as a multi-dimensional vector: metadata depth (title_tag, meta_description), heading structure, canonical correctness, schema presence, image alt coverage, internal/external links, and technical readiness. Required features include title_tag length check, meta_description length check, canonical tag presence and correctness, and basic schema presence. Optional/advanced features include page_load_time_ms, image_alt_ratio, and JSON-LD completeness. It outputs an SEO score, identified issues, and recommended fixes. Distinct advantages include explicit weighting, audit-ready outputs, and exportable results for teams.
Inputs & Outputs: Inputs cover page-level signals: domain, page_url, title_tag, meta_description, h1_count, h2_count, has_canonical, canonical_url, has_schema_jsonld, page_load_time_ms, word_count, image_alt_ratio, internal_links_count, external_links_count, robots_txt_present. Outputs include seo_score, issues, recommendations, and a structured summary. Validation ensures required inputs exist; missing optional inputs default to conservative estimates.
Algorithms & Calculations: The tool uses weighted scoring: seo_score = 40 if title and description meet length goals, plus 20 for canonical correctness, 15 for schema presence, 5 for image alt coverage, 5 for proper heading use, 5 for internal linking density, and 10 for speed readiness. Additional checks flag missing elements and propose fixes. Edge cases handle invalid lengths, missing URLs, or unreachable data; inputs are validated and sanitized.
Industry/Region & Localization: Uses standard web and SEO conventions; ms for load time, kilobytes for assets; supports locale-aware checks via language hints and optional hreflang signals; follows major search engine guidelines; regional thresholds adapt to language and country settings.
Assumptions & Exclusions: Assumes provided inputs reflect actual page signals or measurement data; does not perform live site crawling or access restricted content; excludes UI behavior and styling; not a full site audit, but a per-page health score and prioritized plan.