illmkcoedmdanbkoihjpipllkaoakccm
Measure metrics for a healthy site, Server Info, Web info, SEO Analysis & Accessibility checks. Web Vitals Extension — Complete website analysis in a single popup. Measure Core Web Vitals, run SEO audits, check accessibility, inspect server and DNS details, and detect the technology stack of any website. All analysis runs locally in your browser. WEB VITALS Real-time LCP, CLS, INP, FCP and TTFB metrics with color-coded ratings (good / needs improvement / poor). Comparison against real-user field data from the Chrome UX Report (CrUX) and specific fix suggestions for every metric that fails its threshold. SERVER INFO IP address, geolocation (country, region, city), ISP, organization, ASN, timezone and hostname. DNS INFO A, AAAA, MX, NS, TXT, SOA and CNAME records via Google Public DNS. Subdomain discovery when available. SEO SEO score 0-100 based on title, meta description, headings, images, structured data, Open Graph and security headers. Domain Authority and Domain Rating estimations. Content analysis: word count, heading structure, alt text, internal and external links. Actionable fix suggestions for every issue found. TECH STACK Automatic detection of CMS and SSGs (WordPress, Next.js, Hugo, etc.), server software (Nginx, Apache), JavaScript frameworks, libraries, analytics and marketing tools, and font providers. ACCESSIBILITY (A11Y) 0-100 score with estimated WCAG compliance level (A, AA, AAA). Detects missing alt text, empty links and buttons, unlabeled form inputs, skipped heading levels, missing landmarks and positive tabindex values. Every issue includes a clear recommendation. EXTRA FEATURES .- Report export: one-click Markdown export with data from all tabs. .- Dark and light mode: preference saved across sessions. .- Side Panel: open the extension in Chrome's side panel (Chrome 114+ required). PRIVACY All analysis runs locally. Metrics are fetched from public APIs only (CrUX, ipwhois.app, Google Public DNS, Mozilla HTTP Observatory, RDAP.org). No personal data, browsing history or metrics are sent to servers owned by the extension authors. The extension does not track you or collect analytics. WHO IT'S FOR Web developers, SEO professionals, system administrators and anyone who wants to understand the performance, accessibility and infrastructure of a website in seconds.
Check My Links
Check My Links is a link checker that crawls through your webpage and looks for broken links. Check My Links is a powerful link checker that scans any webpage, Google Sheet, Docs and instantly identifies broken or invalid links. Whether you're editing a webpage, auditing content, or managing SEO, Check My Links helps you verify every link on the page with a single click. New Feature: Now it can detect the link from Google Doc and Excel sheet too and verify them. ✅ How it works 1. Open the webpage you want to validate. 2. Click the Check My Links icon in your toolbar. 3. The extension will scan all links on the page, highlight the valid ones, and clearly mark any broken or problematic links. 4. View results instantly on the page. 🎁 Features * One-click scan for all webpage links * Highlights valid, broken, and redirected links * Download or view detailed reports for broken and invalid links * Customize highlight colors * Option to disable color highlighting * Faster, accurate link validation - perfect for developers, content editors, and SEO teams 🔐 Advanced Features After a fresh install, the extension will not show product information or tutorials. After a few days, it may display helpful product tips as info. If you prefer a clean interface, you can hide these info using the Advanced Feature Key available here: https://selectorshub.com/how-to-get-check-my-links-advanced-features-key/ 🚫 Default Excluded URLs To prevent unnecessary noise during scanning, the following URLs are excluded by default. If needed, you can remove these exclusions from the extension’s settings: 1. doubleclick.net 2. appliedsemantics.com 🔗 More Details Learn more about the tool here: https://selectorshub.com/checkmylinks/ 💬 Need Help? If you face any issues or have questions, reach out anytime at support@selectorshub.com
React Scan Toggle
This is a wrapper for the million's React Scan library (version 0.2.14) [NOT AN OFFICIAL REACT SCAN EXTENSION] IMPORTANT: This extension requires React Developer Tools to be installed and enabled. A lightweight extension that helps you visualize and analyze React component renders in real-time. Toggle React Scan functionality with a single click to debug performance issues and understand your React application's behavior. Key Features: • One-click activation/deactivation • Visual feedback through colored overlays • Track component render counts and timing • Inspect component props and state changes • State persists while navigating within tabs • Zero configuration required • Works with any React application • Secure local script execution (no external connections) This community-built tool makes React Scan more accessible by providing an easy-to-use toggle interface. Perfect for developers who want to quickly analyze React component performance without modifying their codebase. Note: This is not an official React Scan extension. It's a community-built tool that incorporates React Scan (MIT licensed, Copyright 2024 Aiden Bai, Million Software, Inc.) to make its functionality more accessible. Privacy & Security: • No data collection • No external connections • All processing happens locally • No permissions beyond the active tab
Core Web Vitals Visualizer
Measure, visualize, and debug Core Web Vitals in real time. CrUX history, LCP/CLS/INP breakdowns and performance experiments Core Web Vitals Visualizer Open the popup on any page. See your LCP, CLS, INP, FCP, and TTFB scores instantly, color-coded, live. No separate tool. No copy-pasting URLs into PageSpeed Insights. What it shows Real-time scores powered by the web-vitals library, the same library Chrome uses internally. Green means good. Orange means work to do. Red means it's hurting you. LCP - Green overlay marks the LCP element on the page. Full timing breakdown: TTFB, Resource Load Delay, Resource Load Duration, Element Render Delay. For images: preload status, fetchpriority, 1st vs 3rd party origin, natural vs rendered dimensions, estimated preload savings. CLS - Pink overlays mark every layout shift source. Click any shift to see an animated before/after replay. Attribution shows the largest shift target and score. INP - Broken down into Input Delay, Processing Duration, and Presentation Delay. Shows interaction type, target element, and page load state at time of interaction. FCP and TTFB - -FCP splits into Time to First Byte vs First Byte to FCP. TTFB splits into Cache, DNS, Connection, Request, and Waiting. CrUX history 25 weeks of Chrome User Experience Report data for any site or URL. Toggle between P75 scores and good/needs-improvement/poor distributions. Switch between mobile and desktop. Trend lines show whether each metric is moving in the right direction. Render-blocking resources Every render-blocking stylesheet and script listed with individual file timings and total blocking duration. Performance experiments Test fixes without touching your code. Disable JS, defer all JS, or block third-party JS. Lazy load images, de-prioritize background images, disable web fonts or third-party CSS. Run any experiment with cache cleared to measure real cold-load impact. Network throttling Simulate slow 3G with CPU throttling. Clear cache and reload to measure cold performance. Built for developers Minimal permissions. No data collection. Everything runs locally. All vitals logged to the console for debugging. One-click links to CrUX Dashboard, PageSpeed Insights, and the W3C HTML Validator for the current page. changes: 1.19 New Signal scan and minor fixes 1.18 Fixed INP attribution logic 1.17 Redesign of Experiments and new Audit tab, Minor logic an UI fixes 1.16 Added content audit, refactored experiments and minor layout improvements 1.15 Minor fixes 1.14 Added Treo.sh link, removed depricated looker studio report, added crux lcp subparts, rtt. navigation types and lcp types 1.13 Added CrUX Vis link, better fallback for missing CrUX data and small bigfixes. 1.12 Better messaging + improved elementtiming, better logging to console 1.11 Removed the FID, the Web Vitals are now based upon the upcoming v4 of the web vitals library, new breakdown details, improved CSS visualization, small bugfixes, code cleanup. 1.10 Promote INP to a Core Web Vitals and demote FID to a metric of interest! 1.9 CrUX history API, small fixes, more CLS info 1.8 Better metric updates, better logging, minor improvements 1.7 Log Events, Long Tasks and Long Animation Frames to the console that happen during and might interfere with the INP. 1.6 Better INP Breakdown, minor code improvements. 1.5 code improvements, layout improvements, added page experiments (defer javascript, disable javascript, disable third party scripts, lazy load images, defer background images & disable webfonts). 1.4 left side menu, more information about render blocking resources and direct links to PSI, CrUX dashboard and W3C. 1.2 added lots of LCP information like preloading, fetchpriority, rendering breakdown, first or third party etc.
RankingsFactor – AI SEO & Website Analyzer
Analyze SEO, SERP rankings, and site performance instantly with the AI-powered RankingsFactor Chrome Extension. RankingsFactor is a smart, fast, and privacy-friendly Chrome extension designed to supercharge your website’s SEO and performance. Whether you’re an SEO professional, digital marketer, developer, blogger, or business owner, RankingsFactor puts real-time analysis and AI-powered SEO recommendations right at your fingertips. With just one click, scan any webpage and get instant feedback on key SEO elements including meta tags, heading structure (H1–H6), canonical URLs, keyword usage, structured data, and more. Powered by AI-driven insights, RankingsFactor doesn’t just highlight issues — it delivers actionable suggestions to fix them and boost your search visibility. Go beyond surface-level audits with Core Web Vitals (LCP, CLS, FID), load speed, and user experience metrics. The extension also checks for mobile responsiveness, accessibility, indexability, broken links, and LLM optimization — all displayed in a clean, easy-to-use dashboard. On-page keyword optimization analysis Unlike heavy SEO tools, RankingsFactor is lightweight, fast, and beginner-friendly. It’s built for performance-focused teams who need quick, actionable insights without bloated dashboards or expensive subscriptions. Whether you’re optimizing your own site or auditing a competitor, RankingsFactor gives you the clarity and direction you need instantly. 1. What is RankingsFactor? An AI-powered SEO Chrome extension that delivers instant website audits and performance analysis in one click. 2. Is it free? Yes. Core SEO features are free, with optional advanced AI insights. 3. Who can use it? SEO experts, marketers, developers, bloggers, and business owners. 4. How does it improve SEO? By scanning meta tags, headings, keywords, structured data, Core Web Vitals, and indexability — then giving AI-driven suggestions. 5. Does it track my data? No. RankingsFactor is privacy-friendly and runs locally in your browser. 7. Does it check Core Web Vitals? Absolutely — including LCP, CLS, FID, and load speed. 8. Why choose RankingsFactor? It’s lightweight, fast, AI-powered, and easy for beginners while powerful enough for pros. 10. How do I start? Install RankingsFactor from the Chrome Web Store, visit any webpage, click the icon, and run your audit instantly. 11. Can RankingsFactor check LLM optimization? Yes. It analyzes your page content and provides a clear LLM optimization status with suggestions to improve AI comprehension. 12. Why is LLM optimization important? Optimizing for LLMs ensures better AI interpretation of your content, improving automated content analysis, AI-driven suggestions, and search visibility.
