SEO Tool - Website SEO Checker

SEO Tools – Website SEO Checker SEO Tools helps you analyze webpages directly in Chrome. It brings together detailed checks for on-page SEO, technical SEO, performance, Core Web Vitals, security, mobile implementation, advanced website information, and E-E-A-T signals. Review the available information on a webpage from one convenient interface and identify areas that may require further attention. ━━━━━━━━━━━━━━━━━━━━ ★ ON-PAGE SEO ━━━━━━━━━━━━━━━━━━━━ ✓ SEO Title Checker Check the page title, confirm whether a title is present, and review its length. ✓ Meta Description Checker Review the page meta description and its available information. ✓ Heading Structure Analyzer Inspect H1, H2, H3, H4, H5, and H6 headings to understand the page's heading hierarchy. ✓ Image Alt Text Checker Review image alternative text and identify images that may not have useful alt attributes. ✓ Image Dimensions & Aspect Ratio Check image dimensions and identify images without declared dimensions that may affect layout stability. ✓ Responsive Image Checker Review responsive image implementation, including srcset, sizes, responsive image variants, and picture-based delivery. ✓ Image Format Checker Identify image formats and review the use of modern formats such as WebP and other optimized formats. ✓ Favicon Checker Check favicon implementation and related website icon configuration. ✓ Open Graph Checker Inspect Open Graph information including title, description, URL, image, image dimensions, secure image URL, image alt text, type, site name, and locale. ✓ Twitter/X Metadata Checker Review available Twitter/X card information, including card, title, description, image, site, and creator metadata. ✓ Keyword Usage Analyzer Review keyword usage across page content, meta description, title, H1, headings, and URL-related signals. ✓ Structured Data Checker Inspect JSON-LD and structured data implementation, including detected schema types, valid blocks, required properties, and recommended properties. ━━━━━━━━━━━━━━━━━━━━ ★ TECHNICAL SEO ━━━━━━━━━━━━━━━━━━━━ ✓ Robots.txt Checker Review robots.txt availability and information when it can be verified. ✓ XML Sitemap Checker Check sitemap availability and review available sitemap information. ✓ Canonical URL Checker Identify and inspect the canonical URL declared by the webpage. ✓ Indexability Checker Check page-level indexing directives and review whether the page is configured for indexing. ✓ Nofollow Link Checker Analyze links and identify nofollow, sponsored, and UGC link attributes. ✓ Meta Refresh Checker Detect meta refresh usage and identify pages using client-side refresh behavior. ✓ Character Encoding Checker Check the declared character encoding and UTF-8 implementation. ✓ Deprecated HTML Checker Detect deprecated HTML tags and review HTML markup quality. ✓ JavaScript & Resource Error Checker Check for JavaScript, console, and resource-related errors detected during analysis. ✓ Desktop Readiness Checker Review desktop page structure, word count, H1 usage, and available desktop layout information. ✓ Custom 404 Checker Check whether the website provides an appropriate custom 404 page. ✓ URL Redirect Checker Analyze URL redirect behavior and identify redirect chains or unnecessary redirects when server-side verification is available. ━━━━━━━━━━━━━━━━━━━━ ★ PERFORMANCE & CORE WEB VITALS ━━━━━━━━━━━━━━━━━━━━ ✓ Page Objects Analyzer Analyze page objects including HTML, JavaScript, CSS, images, SVGs, fonts, media, and iframes. ✓ JavaScript Error Checker Detect JavaScript errors that may affect page functionality. ✓ HTML Size Analyzer Measure HTML document size and identify potentially excessive HTML payloads. ✓ DOM Size Analyzer Analyze total DOM elements, DOM depth, div count, script count, and style sources. ✓ HTTP Request Analyzer Review resource requests including JavaScript, CSS, images, fonts, and other resources. ✓ Page Weight Analyzer Review measured page weight and available resource-size information. ✓ Compression Checker Review whether server-side compression such as gzip or Brotli can be verified. ✓ CDN Usage Checker Identify CDN and external delivery hosts referenced by the webpage. ✓ Browser Caching Checker Review caching-related headers such as Cache-Control, Expires, ETag, and Last-Modified when server-side information is available. ✓ JavaScript Minification Checker Check whether JavaScript appears to be minified. ✓ CSS Minification Checker Check whether CSS appears to be minified. ✓ Render-Blocking Resource Checker Identify blocking resources detected in the document head. ✓ Page Speed Analysis Review available page-speed information and identify when additional live-page or server-side measurement may be required. ✓ LCP Checker Analyze Largest Contentful Paint (LCP) information and review the detected LCP candidate. ✓ INP Checker Analyze Interaction to Next Paint (INP) information and identify potential interaction-performance concerns. ✓ CLS Checker Analyze Cumulative Layout Shift (CLS) information and identify media elements that may lack reserved dimensions. ━━━━━━━━━━━━━━━━━━━━ ★ SECURITY & WEB PROTOCOLS ━━━━━━━━━━━━━━━━━━━━ ✓ HTTPS Checker Verify whether the analyzed webpage is served over HTTPS. ✓ Mixed Content Checker Identify insecure resources loaded by an HTTPS webpage. ✓ SSL/TLS Checker Review SSL/TLS certificate information when server-side certificate verification is available. ✓ HTTP/2 & HTTP/3 Information Review HTTP protocol information when it can be verified through server-side or network-level analysis. ✓ Plaintext Email Checker Identify email addresses exposed directly in webpage HTML. ✓ External Link Security Checker Review external links and identify target="_blank" links that may require security attributes such as rel="noopener noreferrer". ━━━━━━━━━━━━━━━━━━━━ ★ MOBILE SEO & USABILITY ━━━━━━━━━━━━━━━━━━━━ ✓ Mobile Optimization Checker Review mobile readiness and responsive i…