Free SEO Analyzer & Text Checker

SEO (Search Engine Optimization) analysis is the process of evaluating a web page to identify issues that prevent good ranking on search engines like Google. A good SEO analyzer examines over 50 critical factors: from page title to heading structure, from E-E-A-T signals to GEO (Generative Engine Optimization) readiness for AI search.

Why SEO analysis matters for SMBs

For small and medium businesses, appearing in the top Google positions can mean the difference between growing or staying invisible. 75% of users never go past the first page of results. A free SEO analysis lets you discover exactly what to improve: missing meta descriptions, images without alt text, broken links, accessibility issues, and much more.

What our SEO Analyzer checks

Our free tool checks in real time: title tags and meta descriptions (length and content), heading hierarchy (H1-H6), image optimization (alt text, dimensions, lazy loading), internal and external link structure, text readability (Flesch score), keyword density, Open Graph and Twitter Card tags for social media, JSON-LD structured data, technical aspects (viewport, canonical, hreflang, HTTPS), security headers, accessibility (ARIA, form labels, skip navigation), and crawlability (robots.txt, sitemap.xml). The report includes a score from 0 to 100, a Google preview, priority recommendations, and a scan history to track improvements over time.

Free SEO analysis vs paid tools

Unlike paid SEO tools that charge $50-200/month, this free SEO analyzer gives you an instant, comprehensive audit with no registration required. You get the same core checks that professional tools offer: on-page SEO scoring, technical SEO validation, mobile-friendliness testing, security header verification, and accessibility auditing. Perfect for small businesses, freelancers, and anyone who wants to understand how search engines see their website.

The 50+ SEO checks explained in detail

Our SEO analyzer performs an in-depth analysis across over 50 critical areas, organized into key categories:

Title Tag & Meta Description — The page title is the first element users see in Google results. It should be 50-60 characters long, contain the main keyword, and be unique for each page. The meta description (150-160 characters) should convince the user to click. Our tool checks length, keyword presence, and uniqueness of both.

Heading Hierarchy (H1-H6) — A correct heading structure helps Google understand content hierarchy. There should be exactly one H1 per page, consistent with the title tag. Subsequent headings (H2, H3...) should not skip levels. Our analyzer detects missing, duplicate, and skipped-level headings.

Image Optimization — Images without alt text are invisible to search engines and screen readers. Images without dimensions (width/height) cause CLS (Cumulative Layout Shift), a Google Core Web Vital. We also verify lazy loading for below-the-fold images and overall page weight.

Link Analysis — Internal links distribute authority across your site's pages. External links to authoritative sources improve credibility. Broken links (404) damage both user experience and rankings. We analyze quantity, anchor text quality, and problematic links.

Readability & Content — Google rewards thorough, well-structured content. We calculate the Flesch Reading Ease score, text-to-HTML ratio, presence of paragraphs, lists, bold text, and media. Pages with fewer than 300 words are considered ‘thin content’ and rarely rank well.

Technical & Security — Viewport meta tag for mobile, canonical URL to avoid duplicate content, hreflang for multilingual sites, HTTPS for security, headers like HSTS and CSP. We also check robots.txt, sitemap.xml, and overall page crawlability.

How to improve your website’s SEO ranking

Improving SEO is not a one-time action but an ongoing process. Here are the most effective steps, in order of priority:

1. Fix critical errors — Start with issues flagged in red in the report: missing title, no H1, images without alt text, broken links. These errors actively block your ranking.

2. Optimize title & meta description — Write a title that includes the main keyword within the first 60 characters. The meta description should be a ‘mini-ad’ that encourages clicks. Each page must have unique title and description.

3. Create in-depth content — Google rewards pages that fully answer the user’s question. Aim for 1000+ words for informational pages, with structured headings, lists, and short paragraphs. Use our SEO Analyzer to measure content quality.

4. Improve speed — Compress your images (try our image compressor), enable lazy loading, minimize CSS and JavaScript. Load time is a direct ranking factor.

5. Monitor and repeat — Use our Site Monitor to get automatic weekly checks. Track improvements over time with charts and alerts when something gets worse.

SEO Analyzer for e-commerce and business websites

SEO analysis is particularly critical for e-commerce and business websites. Product pages need unique descriptions (not copied from suppliers), optimized images with descriptive alt text, Product structured data with price and availability, and clean URLs with keywords. Business websites should optimize service pages, blogs, and landing pages to capture traffic at different funnel stages. Our analyzer checks all these aspects in seconds, helping you identify pages that need immediate attention.

Checklist SEO 2026: i 10 controlli essenziali

Prima di pubblicare qualsiasi pagina web, verifica questi 10 punti fondamentali del SEO on-page:

1. Title tag presente, unico, 50-60 caratteri, con keyword principale
2. Meta description presente, 150-160 caratteri, con call-to-action
3. Un solo H1 per pagina, coerente con il title
4. Gerarchia heading corretta: H1 → H2 → H3, senza salti
5. Immagini ottimizzate: alt text descrittivo, dimensioni specificate, formato WebP/AVIF
6. URL pulito e leggibile con keyword (no parametri o ID numerici)
7. Link interni verso pagine correlate (min. 3-5 per pagina)
8. HTTPS attivo con certificato valido e redirect da HTTP
9. Mobile responsive: viewport tag, font leggibili, tap target ≥48px
10. Core Web Vitals: LCP < 2.5s, CLS < 0.1, INP < 200ms

Come analizzare il SEO di un sito web

Analizzare il SEO di un sito web significa esaminare sistematicamente tutti gli elementi che influenzano il posizionamento sui motori di ricerca. Che tu sia un principiante o un professionista, il processo è lo stesso:

Passo 1: Inserisci l'URL — Copia l'indirizzo completo del sito che vuoi analizzare (es. https://example.com) e incollalo nel campo sopra. Il nostro analyzer supporta qualsiasi sito web pubblico, indipendentemente dalla piattaforma (WordPress, Shopify, Wix, custom).

Passo 2: Leggi il punteggio — Il report mostra un punteggio da 0 a 100 suddiviso in categorie: SEO on-page, performance, sicurezza, mobile e contenuto. I problemi critici sono segnalati in rosso, i warning in giallo, i check superati in verde.

Passo 3: Correggi per priorità — Inizia sempre dagli errori critici (rossi), poi passa ai warning. Ogni problema include una spiegazione e il codice da usare per risolverlo. Un miglioramento di 10-20 punti è possibile in meno di un'ora correggendo i problemi principali.

Passo 4: Rianalizza — Dopo le correzioni, lancia una nuova analisi per verificare i miglioramenti. Il confronto prima/dopo ti mostra esattamente quanto hai guadagnato in ogni area.

Errori SEO comuni che il 90% dei siti commette

Dopo aver analizzato migliaia di siti web, questi sono gli errori SEO più frequenti: title tag generico come "Home" o il nome dell'azienda (senza keyword); meta description assente, lasciando a Google la scelta del testo mostrato nei risultati; immagini senza alt text, rinunciando a una fonte importante di traffico da Google Images; nessun link interno, impedendo ai motori di ricerca di scoprire e valorizzare le altre pagine; contenuto troppo breve (sotto 300 parole) che Google classifica come "thin content"; e mancanza di dati strutturati (Schema.org), perdendo l'opportunità di apparire con rich snippet nei risultati di ricerca. Usa il nostro SEO analyzer per scoprire quali di questi errori riguardano il tuo sito e risolverli oggi stesso.

Free Article & Text SEO Checker — Check Your SEO Score Online

Our SEO analyzer doubles as a powerful article SEO checker and SEO text checker online: paste the URL of your blog post, article, landing page, or any content page and get an instant SEO score with specific tips to rank higher on Google.

To get a good article SEO score, focus on these elements: a title tag with your main keyword (50-60 characters), a compelling meta description that drives clicks, structured headings (H1 for the title, H2/H3 for sections), images with descriptive alt text, internal links to other articles on your blog, and at least 300 words of original content. Our checker analyzes all of these in seconds and tells you exactly what to improve.

Pro tip: also analyze your competitors’ articles to see what they do better. Compare SEO scores and identify areas where you can outperform them.

Our article SEO score checker is completely free and requires no signup. It works with any platform: WordPress, Medium, Substack, Ghost, Blogger, and custom sites. Beyond the overall score, the report shows text readability (Flesch score), keyword density, text-to-HTML ratio, and internal link quality — all critical factors for ranking an article on Google’s first page.

Online SEO Text Checker — Analyze Any Text for SEO

Need to check the SEO of your text before publishing? Our online SEO text checker analyzes the full HTML of your page — not just raw text — evaluating readability, keyword usage, heading structure, and content depth. Unlike simple word counters, this SEO text analyzer checks how search engines actually see your content.

Whether you write blog posts, product descriptions, or landing pages, our text SEO check online tool tells you if your content meets Google’s quality standards: sufficient word count, proper heading hierarchy, optimized images, internal links, and a Flesch readability score that matches your audience. Paste any URL and get a detailed text SEO report in 30 seconds — completely free, no signup required.

How often should you run an SEO analysis?

The ideal frequency depends on your site type:

Situations that require an immediate SEO analysis: sudden traffic drop (>20% in one week), after a domain migration or website redesign, after a Google algorithm update, or when pages start disappearing from Google’s index.

Related tools

Want to track your SEO improvements over time? Try our free Website Monitor — it checks your site automatically every week and sends you a report with score changes, new issues, and what to fix first. Complete your strategy with ANIMA’s other free tools: the barcode generator, the QR code generator, the email signature generator, and the VAT calculator.