Test your SEO knowledge and learn along the way. Free, no signup.
93 multiple-choice questions across six areas of search optimisation, every one with an explanation of the right answer. Free, no signup, no email gate: pick a mode and start. A run takes five to fifteen minutes.
| Topic | Questions | What it tests |
|---|---|---|
| Technical SEO | 33 | crawling and indexing, redirects, canonicals, robots directives, hreflang, crawl budget, authority metrics |
| On-Page SEO | 21 | title and meta length, headings, internal links, search intent, E-E-A-T, featured snippets |
| Performance | 16 | lazy loading, render-blocking resources, caching, CDNs, image formats, the critical rendering path |
| Core Web Vitals | 9 | LCP, CLS, INP, FCP, TBT and the thresholds Google calls good |
| Schema Markup | 9 | JSON-LD, the schema types that earn rich results, and what each one is for |
| Mobile SEO | 5 | mobile-first indexing, the viewport tag, responsive design, interstitials |
Every question is also labelled beginner or advanced. New to SEO? Start with the SEO Quiz for Beginners (54 questions). Been doing this for years? The Advanced SEO Quiz (39 questions) skips the definitions.
Learning mode asks 10 questions with no clock. After each answer the correct option is highlighted and a short explanation appears, so a wrong pick is a two-line lesson rather than a lost point. Timed challenge asks 20 questions in 100 seconds and hides the answers until the end — the fair way to compare a score with a colleague.
Your score is the percentage of correct answers. Every run also tracks your longest streak of correct answers in a row. The badge is decided by the score:
When you finish you get a link to a result page with your score and badge that you can share, a breakdown of every question with the explanation for each one you missed, and a new random draw if you want to go again.
The bank is written and maintained by the team behind Greadme, which audits pages against the same rules the questions test: Core Web Vitals thresholds are Google's published ones, the schema questions follow schema.org and Google's rich result documentation, and the technical SEO questions are the situations a site audit turns up every day. Each explanation cites the concept, not a memory, so you can look it up.
20 of the 93, spread across the six topics and both levels. The answer and its explanation are hidden until you open each one — read them here, or keep them for the quiz.
Answer: C. LCP measures loading performance by tracking when the largest content element in the viewport becomes visible. A good LCP is 2.5 seconds or less.
Answer: A. FID measures interactivity by tracking the time from when a user first interacts with your page to when the browser can respond. Good FID is less than 100ms.
Answer: B. Keyword cannibalization occurs when multiple pages on your site target the same keyword, causing them to compete against each other in search results.
Answer: B. An XML sitemap is a file that lists all important pages on your website, helping search engines discover and crawl your content more efficiently.
Answer: A. JSON-LD (JavaScript Object Notation for Linked Data) is Google's recommended format for adding structured data/schema markup to pages. It's easy to implement and maintain.
Answer: D. A CDN (Content Delivery Network) distributes your content across multiple servers worldwide, serving files from the location nearest to users for faster load times.
Answer: D. The viewport meta tag with 'width=device-width, initial-scale=1' ensures proper rendering on mobile devices by matching the screen width and setting initial zoom level.
Answer: B. Anchor text is the visible, clickable text in a hyperlink. It helps search engines understand what the linked page is about and affects rankings.
Answer: D. Internal linking connects pages within your own website. It helps distribute link equity, improves navigation, and helps search engines understand site structure and content relationships.
Answer: A. Image compression reduces file size without significantly affecting quality, which improves page load speed—a crucial ranking factor. Tools like TinyPNG or ImageOptim can help.
Answer: B. WebP is a modern image format developed by Google that provides superior lossless and lossy compression. WebP images are typically 25-35% smaller than JPEGs, improving page load times.
Answer: D. Google Business Profile is a free tool that lets you manage how your business appears on Google Search and Maps. It's crucial for local SEO and helps customers find your business information.
Answer: B. Pagination is dividing content across multiple pages (page 1, 2, 3, etc.). Proper implementation using rel='next' and rel='prev' tags or view-all pages helps search engines understand the relationship.
Answer: D. Topic clustering involves creating a pillar page on a broad topic with multiple related cluster pages linking to it. This structure helps establish topical authority and improves rankings.
Answer: A. The critical rendering path is the sequence of steps the browser goes through to convert HTML, CSS, and JavaScript into pixels on the screen. Optimizing it improves page load performance.
Answer: D. Above-the-fold content is what's visible in the viewport without scrolling. Having meaningful content above the fold is important for user experience and Core Web Vitals like LCP.
Answer: A. Semantic HTML uses elements like <article>, <nav>, <header> that clearly describe their content. It improves accessibility, SEO, and code maintainability by providing meaningful structure.
Answer: B. Priority hints (importance attribute) let developers indicate resource priority to browsers. Values like 'high', 'low', or 'auto' help browsers make better loading decisions for optimal performance.
Answer: A. Speed Index measures how quickly content is visually displayed during page load. Lower scores are better. Good Speed Index is 3.4 seconds or less. It's calculated using visual progression.
Answer: C. DA is calculated by Moz using multiple factors including linking root domains, total number of links, and other proprietary metrics. It uses machine learning to find the algorithm that best correlates with search rankings.
Each track is the same quiz, drawing only from its own questions.
Free, and no. There is no signup, no email gate before the results and no card. Take it as many times as you like; every run is a fresh random draw from the bank.
Learning mode (10 questions, reading each explanation) takes about ten minutes. The timed challenge is 100 seconds by definition. A topic track with fewer questions is shorter.
Both. Every question carries a beginner or advanced label; the full quiz mixes them, and the beginners and advanced tracks separate them.
It covers the same ground as most certification exams — technical SEO, on-page, page speed, Core Web Vitals, structured data, mobile — but it is a knowledge check with explanations, not an exam simulator. Use it to find the topics you should read up on.
Yes. The results screen has a full breakdown: your answer, the correct answer and the explanation for every question you missed.
Yes. Every result has its own page with the score and badge, and share buttons for LinkedIn, X, Facebook, WhatsApp and Reddit, plus a copy-link button.
Knowing the rules is half of it. Page Audit scores one URL on performance, SEO, accessibility, best practices and security, with the elements responsible for each issue and a fix for each. Free account, no card. The AI Access Checker and the Schema Validator need no account at all.
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