docs.virustotal.com
https://docs.virustotal.com/reference/files-analyse
Scanned on March 30, 2026
Quick Wins — Top 5 Issues to Fix
- ✗Description length: 38 chars (too short)meta
- ✗No theme-color meta tag — improves mobile browser appearancemeta
- ✗Heading hierarchy has gaps (e.g. H1 to H3 without H2)content
- ✗Readability: 0 (difficult — simplify language)content
- ✗50% long sentences (>20 words) — break up for readabilitycontent
SEO — 62/100 (36 issues)
Failed Checks (36)
- ✗Description length: 38 chars (too short)meta
- ✗No theme-color meta tag — improves mobile browser appearancemeta
- ✗Heading hierarchy has gaps (e.g. H1 to H3 without H2)content
- ✗Readability: 0 (difficult — simplify language)content
- ✗50% long sentences (>20 words) — break up for readabilitycontent
- ✗2 images missing width/height — causes layout shift (CLS)content
- ✗2 of 2 images use legacy formats (JPG/PNG/GIF) — convert to WebP/AVIF for 25-50% smaller filescontent
- ✗No external links — consider linking to authoritative sourcescontent
- ✗Missing og:url — social platforms may use wrong URLsocial
- ✗Missing og:type — defaults to "website"social
- ✗No apple-touch-icon — iOS home screen will lack custom icontechnical
- ✗No hreflang tags — add if targeting multiple languagestechnical
- ✗Text-to-HTML ratio: 2.0% — too code-heavy, add more contenttechnical
- ✗Inline JS: 456.9 KB — too much, use external scriptsperformance
- ✗2 render-blocking scripts — add defer or async attributeperformance
- ✗No font preload/preconnect — add for faster renderingperformance
- ✗No Content-Security-Policy header — XSS risksecurity
- ✗No About page link detected — add for credibilitytrust
- ✗No Privacy Policy link — required by GDPR and improves trusttrust
- ✗No Terms of Service link — add for legal compliance and trusttrust
- ✗No JSON-LD structured data foundschema
- ✗robots.txt does not reference Sitemap — add Sitemap: URLtechnical
- ✗No /sitemap.xml found — create one for better crawlingtechnical
- ✗No Web App Manifest — add for installability and modern web signalstechnical
- ✗No dns-prefetch or preconnect hints — add for faster third-party loadingperformance
- ✗Only 1 first-person pronouns — add personal experience (E-E-A-T)content
- ✗No max-image-preview:large — add to robots meta for Google Discovermeta
- ✗No Referrer-Policy header — may leak URL datasecurity
- ✗No Permissions-Policy — restrict camera/mic/geo accesssecurity
- ✗574 links on page — exceeds 100 limit, may dilute link equitycontent
- ✗DOM size: ~3295 elements — exceeds 1500, may slow renderingperformance
- ✗2 render-blocking script(s) in head — add defer or asyncperformance
- ✗1 duplicate ID(s) found: "favicon" (2x) — must be unique per HTML specaccessibility
- ✗No RSS/Atom feed in <head> — add for content discovery by aggregators and AItechnical
- ✗No IndexNow integration — add for instant Bing/Yandex indexing on content changestechnical
- ✗2 of 11 H2 sections have < 50 words — add more content or merge thin sectionscontent
Passed Checks (58)
- ✓Title tag found: "Request a file rescan (re-analyze)"meta
- ✓Title length: 34 characters (optimal)meta
- ✓Meta description found (38 chars)meta
- ✓Viewport meta tag found (mobile-friendly)meta
- ✓UTF-8 charset declaredmeta
- ✓Language attribute set on HTML tagmeta
- ✓No meta refresh redirect (good)meta
- ✓No robots meta tag (default: index, follow)meta
- ✓Single H1 tag foundcontent
- ✓Title and H1 are identical — consider differentiating slightly for broader keyword coveragecontent
- ✓11 H2 tags foundcontent
- ✓2531 words on page (good content depth)content
- ✓All 2 images have ALT textcontent
- ✓1 images could use loading="lazy" for better performancecontent
- ✓572 internal links foundcontent
- ✓No empty href attributes foundcontent
- ✓All link texts are descriptive (no "click here" or "read more")content
- ✓Open Graph title foundsocial
- ✓Open Graph description foundsocial
- ✓Open Graph image foundsocial
- ✓og:site_name: "VirusTotal"social
- ✓Twitter Card: "summary_large_image"social
- ✓Twitter title foundsocial
- ✓Twitter description foundsocial
- ✓Twitter image foundsocial
- ✓HTTPS enabledtechnical
- ✓Canonical tag foundtechnical
- ✓Canonical tag is self-referencing (correct)technical
- ✓Favicon foundtechnical
- ✓Compression: brtechnical
- ✓URL length: 51 chars (good)technical
- ✓URL uses hyphens or no separators (good)technical
- ✓URL is lowercase (good)technical
- ✓No deprecated HTML tags foundtechnical
- ✓Inline CSS: 5.5 KB (acceptable)performance
- ✓Cache-Control: s-maxage=900, stale-if-error=900performance
- ✓HSTS header present — enforces HTTPSsecurity
- ✓X-Content-Type-Options: nosniffsecurity
- ✓Contact page/email link foundtrust
- ✓Author byline foundtrust
- ✓<!DOCTYPE html> declaredtechnical
- ✓No mixed content — all resources use HTTPStechnical
- ✓Viewport includes width=device-width (responsive)meta
- ✓robots.txt found and allows crawlingtechnical
- ✓No AI crawlers blocked in robots.txt — AI search and training can access contenttechnical
- ✓All 5 checked internal links are workingcontent
- ✓0% nofollow links (0/572) — good link equity flowcontent
- ✓OG image uses absolute URL (correct)social
- ✓URL contains title keywords (25% match)technical
- ✓H1 length: 34 characters (optimal)content
- ✓Title and meta description are different (good)meta
- ✓Viewport allows zoom (good for accessibility)accessibility
- ✓No snippet blocking detected (good — content is fully accessible)technical
- ✓Trailing slash consistent between URL and canonicaltechnical
- ✓2 third-party script domain(s) (acceptable)performance
- ✓ARIA landmarks present: main, nav, skip-linkaccessibility
- ✓All 1 form input(s) have labels or aria-labelsaccessibility
- ✓No iframes on pagesecurity
AEO — 48/100 (27 issues)
Failed Checks (27)
- ✗No structured data — AI systems struggle to categorize your pagediscoverability
- ✗No definition lists (<dl>) — great for term/value pairsdiscoverability
- ✗No FAQ section found — add Q&A content for AI citationstructure
- ✗No question-style headings — try "How to...", "What is..."structure
- ✗No data tables — tables help AI compare and cite datastructure
- ✗No concise answer paragraphs detected — add short summaries after headingsstructure
- ✗No numbered steps or ordered lists — add for "how to" AI answersstructure
- ✗Few key-value patterns — use "**Label:** value" format for AIstructure
- ✗No date information — AI prefers fresh, dated contentcitation
- ✗No source citations — reference studies and data for authoritycitation
- ✗Few external links — cite authoritative sources for AI trustcitation
- ✗No recent year mentioned — AI prefers up-to-date contentcitation
- ✗Only 0 concise answer paragraph(s) after headings — add 2+ short summaries (40-200 chars) right after H2/H3 tagscitation
- ✗No Speakable schema — add for voice assistant optimizationvoice
- ✗Formal tone — use more "you", "your", "we" for AI readabilityvoice
- ✗First paragraph too short for AI snippetsvoice
- ✗No SearchAction schema — add for enhanced search presencevoice
- ✗Avg 212 words/sentence — simplify for AI and voicevoice
- ✗Pronoun density: 0.2% — add more "you/your" for engagementvoice
- ✗Few Q&A blocks — add question headings followed by answer paragraphsvoice
- ✗No Last-Modified header or dateModified — AI prefers content with freshness signalscitation
- ✗No sameAs links in schema — add social profiles for brand recognitioncitation
- ✗Brand name inconsistent — align site name across title, og:site_name, Organization schemacitation
- ✗Content not updated in 90+ days — stale content loses AI visibilitycitation
- ✗No video content — multimedia increases AI engagement and citation ratediscoverability
- ✗Statistics lack source references — attribute data to boost AI trustcitation
- ✗No <details>/<summary> elements — use for expandable Q&A contentstructure
Passed Checks (25)
- ✓2531 words in HTML — good content for AI parsingdiscoverability
- ✓Clean URL structurediscoverability
- ✓6 semantic HTML5 elements founddiscoverability
- ✓16 content sections — well-structured for AIdiscoverability
- ✓Description + OG description both present — clear topic signalsdiscoverability
- ✓69 named entities found — helps AI understand contextdiscoverability
- ✓572 internal links — good topic cluster signaldiscoverability
- ✓3 code/pre blocks found — technical content AI can citediscoverability
- ✓71 lists found — structured content for AIstructure
- ✓50% short sentences — easy for AI to extractstructure
- ✓100% concise paragraphs — scannable for AIstructure
- ✓Avg 940 words/section — sufficient depthstructure
- ✓Author information found — builds E-E-A-Tcitation
- ✓Statistics and data found in content — highly citablecitation
- ✓Organization schema found — AI can identify your brandcitation
- ✓3/5 E-E-A-T signals presentcitation
- ✓Topic focus: 100% — title keywords found in contentcitation
- ✓Active voice dominant (8% passive) — AI-friendlyvoice
- ✓Summary/conclusion section found — AI can extract key pointsvoice
- ✓12 H2/H3 headings — good content structure for AIvoice
- ✓No AI-blocking robots directives — AI crawlers can access contentdiscoverability
- ✓/llms.txt found — AI crawlers can discover your content guidelinesdiscoverability
- ✓AI crawlers allowed in robots.txt (0/4 explicitly listed)discoverability
- ✓Table of Contents detected — helps AI navigate long contentstructure
- ✓Brand "VirusTotal" used consistently (11 mentions)citation
GEO — 53/100 (27 issues)
Failed Checks (27)
- ✗Only 1 definition(s) — add "X is a/the Y" patterns for AI Overview (need 2+)overview
- ✗Few question headings — add Q&A headings for AI Overviewoverview
- ✗No freshness signals — add dates, update timestampsoverview
- ✗No step-by-step content — add numbered guides for AIoverview
- ✗No author schema — add for AI trust signalsauthority
- ✗Only 1/5 trust signals — add reviews, certificationsauthority
- ✗No original data signals — "our research shows..." boosts AI citationauthority
- ✗No examples or case studies — add real-world examplesauthority
- ✗No links to authoritative sources — cite Google, Schema.org, etc.authority
- ✗Few external source domains — diversify your referencesauthority
- ✗No FAQ Schema — add for Google rich results + AI Overviewformat
- ✗No HowTo Schema — add for step-by-step rich resultsformat
- ✗No BreadcrumbList schema — add for better AI contextformat
- ✗Only one list type — use both <ul> and <ol> for content varietyformat
- ✗Single-perspective content — add "on the other hand..." for balanceformat
- ✗No <time> elements — wrap dates in <time datetime="...">semantic
- ✗Few data points with units — add specific numbers (e.g., "300+ users")semantic
- ✗Few contextual links — interlink related contentsemantic
- ✗Few sections have subtopics — add H3 subheadings for depthsemantic
- ✗Page size: 778 KB — very large, may slow AI crawlingtechnical
- ✗Only 0 Schema type(s) — add more for AI contexttechnical
- ✗Only 1 data points — add 5+ statistics for +30-40% AI visibility (Princeton study)authority
- ✗Author lacks credentials — anonymous content is a GEO penaltyauthority
- ✗1 blockquote(s) missing cite attribute — add source URLs for AI trustauthority
- ✗Only 0/6 question angles — add Who/What/When/Where/Why/How headingsoverview
- ✗No <figure>/<figcaption> — wrap images with descriptive captions for AIformat
- ✗No authoritative sameAs links — add Wikipedia/Wikidata/LinkedIn URIs to schema for Knowledge Graph alignmentauthority
Passed Checks (31)
- ✓Comprehensive content (2531 words, 11 sections)overview
- ✓Title and H1 are aligned — clear topic focusoverview
- ✓2-level heading hierarchy — deep content structureoverview
- ✓67% optimal paragraphs (20-80 words) — AI-friendlyoverview
- ✓Source citations found — increases AI trustauthority
- ✓Brand identity consistent (OG + Schema)authority
- ✓Expert quotes or testimonials found — authority signalauthority
- ✓3 industry terms used — domain expertise signalauthority
- ✓Comparison content detected — AI loves comparingformat
- ✓Summary/conclusion section foundformat
- ✓2 images all with ALT text — AI can understand visualsformat
- ✓Data visualization elements found (tables/charts)format
- ✓3/6 formatting types used — rich contentformat
- ✓Actionable advice found — AI prefers practical contentformat
- ✓Conclusion/recommendation found — helps AI provide answersformat
- ✓1 entity types in Schema — AI can classify contentsemantic
- ✓6/14 semantic HTML5 elements — deep semantic structuresemantic
- ✓100% title keywords in first 200 words — good prominencesemantic
- ✓Content categorization found — clear topic classificationsemantic
- ✓Mobile-friendly (viewport set)technical
- ✓HTTPS secure — trusted by AI systemstechnical
- ✓Open Graph fully configured (title, description, image)technical
- ✓Canonical URL set — prevents AI from citing duplicatestechnical
- ✓Page allows AI indexing (no noindex/nosnippet)technical
- ✓HTML lang="en" set (add og:locale for completeness)technical
- ✓4 ARIA landmarks found — good accessibility for AItechnical
- ✓All image ALT texts are descriptive (>5 chars)format
- ✓2531 words — sufficient depth for AI analysisoverview
- ✓First 200 words contain topic keywords — AI extracts primarily from the startoverview
- ✓Content formatted for featured snippets — definition + structured listsoverview
- ✓No snippet restrictions — AI can freely extract content (good)technical
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