Now availableVisibilityKit CrawlerDownload for Mac

Soft 404

A page that looks like an error or empty page to users but returns a 200 OK status to crawlers.

CrawlerCrawling & Technical SEO

Definition

A soft 404 happens when a server shows a 'not found' message, an empty search result or near-blank content while still returning 200.

Search engines treat these as errors in disguise and may ignore them, but the page still consumes crawl budget.

Why It Matters

Soft 404s hide real problems from reporting and can clutter the index with empty pages.

How VisibilityKit Helps

VisibilityKit Crawler records the status code alongside content signals such as word count and title for each URL. Pages that return 200 but have error-like titles or almost no content stand out for review.

Frequently Asked Questions

How do I fix a soft 404?

Return a real 404 or 410 for missing pages, redirect to a relevant page if one exists, or add real content if the page should exist.

Why do soft 404s happen?

Usually a CMS or framework renders an error template without setting the status code.

Browse the glossary

301 vs 302 Redirect404 Error
Action CenterAEO AuditAEO vs GEOAEO vs SEOAI Answer EngineAI Brand MonitoringAI CitationAI Competitive AnalysisAI Content GapAI Content OptimizationAI Crawler AccessAI CrawlingAI DiscoverabilityAI Engine Optimization (AEO)AI GroundingAI HallucinationAI IndexingAI Marketing ROIAI MentionAI RecommendationAI Reputation ManagementAI Search RankingAI Search TrendsAI Search vs GoogleAI SEO StrategyAI SERPAI Share of VoiceAI Traffic AttributionAI VisibilityAI Visibility Action PlanAI Visibility SnapshotAI Visibility vs SEO RankingAI-First Content StrategyAI-First SEOAI-Powered SearchAI-Ready ContentAnswer EngineAnswer EvidenceAnswers Matrix
Brand FidelityBrand GraphBrand Visibility ScoreBranded PromptBroken LinkBuyer IntentBuyer Question
Canonical TagChatGPT SEOCitation RateCitation TrackingClaude OptimizationClient Viewer RoleClient WorkspacesContent CitabilityConversational SearchCrawl BudgetCrawl ComparisonCrawl DepthCrawl SnapshotCustom Extraction
DeepSeek SearchDuplicate Content
Entity Optimization
Fix VerificationFound but Not Cited
Gatekeeper SourceGemini SearchGenerative Engine Optimization (GEO)Google AI OverviewsGoogle Analytics 4 (GA4)Google Search ConsoleGrok Search
Heading Structure (H1 to H6)HreflangHTTP Status Codes
Image Alt TextIndexabilityInlinksInternal Link SuggestionsInternal LinkingInternal PageRank
JavaScript Rendering
Knowledge Graph
Large Language Model (LLM)llms.txtLocal-Only Crawl DataLooker Studio Export
MCP ServerMention vs Recommendation vs CitationMeta AI SearchMeta DescriptionMicrosoft Copilot SearchModel Context Protocol (MCP)Multi-Brand Portfolio
Natural Language Processing (NLP)Noindex (Meta Robots)
Orphan PageOutlinks
Perplexity RankingPrompt OptimizationPrompt Set
Redirect ChainRedirect LoopRedirect MapRendered vs Raw HTMLResponse Timerobots.txt
Scheduled CrawlSchema MarkupSearch Console Winners and LosersSemantic SearchSEO CrawlerSoft 404Structured Data for AI
Technical SEO AuditThin ContentTitle TagTopical Authority
URL List Mode
VisibilityKit vs Alternatives
Web CrawlerWhite-Label Report
XML Sitemap
Zero-Click Search

Put these terms to work

VisibilityKit Crawler

A desktop SEO crawler for macOS, Windows and Linux. Find what is broken, assign the work, then verify every fix. Crawl data stays on your machine.

Get Crawler free