SEO Incident Simulator

Free, no signup. Practice a defensible technical SEO investigation with deterministic evidence, plausible decisions, and clear operational consequences. Every run is a hypothetical fixture case—not a live audit or a prediction about your site.

  1. 1Choose a caseStart with a bundled incident.
  2. 2Inspect evidenceReview the unlocked fixture records.
  3. 3DecideChoose the next diagnostic action.
  4. 4DebriefCarry the method into a real tool.
30 bundled cases · no URL, upload, or live check
Simulated incident · fixture data

Migration traffic collapse

A site relaunch is followed by a sharp organic-landing-page decline. Work from the affected URLs outward before changing sitewide settings.

Difficulty: intermediate

What this lab practices

  • Establish a launch baseline
  • Prioritize lost landing pages
  • Flatten redirect chains before measuring recovery
Inspect

Fixture evidence

Each source is simulated. Review the available records before choosing a next step.

Decision trail (0) decisions made
    4. Current fixture evidence

    Select an evidence source

    Decide

    The launch date and landing-page drop line up. What should the incident team do first?

    Inspect the available fixture evidence before choosing an action.

    Runs entirely in your browser — nothing you paste is uploaded or stored. Progress may be saved in this browser as scenario and decision IDs only; fixture bodies and visitor input are never stored. Anonymous run-level outcome counters may be used for aggregate research; URLs, domains, IPs, and identifiers are never included, and no statistic is released below 100 runs.

    Simulated incident · fixture data: Every fact in these labs is invented for training. Endings connect the diagnostic method to real tools, but they do not claim a live observation, Google-only status, or business outcome.

    How to use it

    1. Choose a scenario and read its learning objectives before making a decision.
    2. Inspect the available fixture evidence instead of guessing from the incident summary.
    3. Select the smallest safe next action. Consequences unlock evidence, advance the investigation, or end the path.
    4. At an ending, compare the evidence you found, the corrective action, and the suggested verification tool.
    5. Restart or rewind to test why another path is weaker. Completion is a training sequence, not a performance score.

    Example scenario Fixture data

    The guided Canonical conflict and index loss lab inventories five disagreeing signals for a fictional product URL. Its shortest defensible path is:

    Find: HTML and HTTP canonicals disagree; navigation points to a redirecting /shop/ URL; the sitemap and redirect agree on /products/.

    Fix: use /products/widget-a consistently in HTML and HTTP canonicals, sitemaps, and internal links while preserving the one-hop redirect.

    Verify: retest the public signals with the Canonicalization Checker, then use Search Console for Google's selected canonical.

    Every URL, date, response, and outcome in that report is invented fixture data.

    What the simulation shows

    An evidence artifact contains labeled facts and optional rows with a fixture observation date. A consequence explains what a choice establishes or leaves uncertain. An ending separates find, fix, and verify, records missed evidence, and names the shortest diagnostic path. It does not predict traffic recovery, crawling, indexing, or rankings.

    How it works

    Thirty versioned JSON scenarios define their initial step, evidence artifacts, choices, consequences, unlocked evidence, and endings. The browser-only simulator applies deterministic state transitions, records inspected evidence and decisions, and can save only scenario and decision IDs locally. No live URL, API, model, or Search Console property is queried.

    Features

    • Guided, intermediate, and advanced technical SEO incidents.
    • Evidence spanning headers, redirects, canonical signals, crawl samples, traffic series, rendered HTML, and timelines.
    • Rewindable decision paths with explicit operational consequences.
    • Find → fix → verify endings linked to the relevant public tool.

    Limits of the simulation

    • All evidence and outcomes are authored fixtures, not measurements from your site.
    • The scenario graph cannot represent every valid investigation sequence or organization constraint.
    • Completing a lab does not certify production readiness or prove a fix will work elsewhere.
    • Google-only states remain outside public verification and are called out as such.

    Frequently asked questions

    Is this a diagnosis of my website?

    No. Every incident, URL, response, timeline, and outcome is fixture data bundled with the page. The simulator does not fetch your site or use your Search Console data.

    Does completing a scenario prove the same fix will work on my site?

    No. The labs teach a diagnostic sequence and identify what public evidence can establish. Apply the linked tools and your own evidence before making a production change.

    Why does the simulator distinguish public checks from Search Console?

    Status codes, headers, redirects, and page markup are observable public evidence. Google’s crawl, selected canonical, and index decisions require a verified Search Console property and are not inferred by these fixtures.

    Local data

    Saved targets, named lists, and recent check summaries remain only in this browser.

    Next stepHTTP Status & Redirect Checker — run the same investigation on a live URL.

    Feature requests for SEO Incident Simulator

    Upvote what you want most. New ideas can be submitted from the floating Feedback menu; requests appear here once approved, and the most-wanted rise to the top.

    Loading…

    ➕ Request a feature

    New requests are reviewed before they appear here.

    Feedback
    Report a bug

    Found something broken in SEO Incident Simulator? Let us know what happened — this goes straight to a private triage queue, not a public list.

    What will be sent
     No tool inputs, uploads, pasted source, complete results, query parameters, or URL fragments are attached automatically. You can edit or remove the selected passage above. Browser and anti-abuse metadata is processed for spam prevention. 

    Acerca de la herramienta

    Este simulador no tiene campo de URL ni carga de archivos, no consulta ningún sitio y no produce hallazgos en vivo. Los proyectos son el lugar donde se conservan las evidencias y el estado de sitios reales; los flujos guían una secuencia diagnóstica real a partir del resultado de una herramienta. Solo después del análisis, elige una herramienta real vinculada y ejecútala con tus propias evidencias autorizadas. Practica el diagnóstico de incidentes técnicos de SEO con treinta casos deterministas de datos ficticios sobre indexabilidad, rastreo, redirecciones, sitemaps, marcado, caché, DNS, verificación de bots, renderizado, hreflang y navegación facetada. Es gratis y no requiere registro. Practica una investigación técnica de SEO defendible con evidencias deterministas, decisiones plausibles y consecuencias operativas visibles. Cada ejecución es un caso ficticio hipotético, no una auditoría en vivo ni una predicción sobre tu sitio.

    Funciones

    • Incidentes técnicos de SEO guiados, intermedios y avanzados. Evidencias que abarcan cabeceras, redirecciones, señales de canonical, muestras de rastreo, series de tráfico, HTML renderizado y cronologías. Rutas de decisión reversibles con consecuencias operativas explícitas. Finales de encontrar → corregir → verificar enlazados con la herramienta pública pertinente.
    • Funciones

    Cómo funciona

    Cómo funciona: treinta escenarios JSON versionados definen el paso inicial, los artefactos de evidencia, las decisiones, sus consecuencias, la evidencia desbloqueada y los finales. El simulador, que funciona solo en el navegador, aplica transiciones de estado deterministas, registra la evidencia y las decisiones inspeccionadas y solo puede guardar localmente los identificadores del escenario y de la decisión. No consulta ninguna URL, API, modelo ni propiedad de Search Console en vivo.

    Limitaciones

    • Incidente simulado · datos ficticios: todos los hechos de estos laboratorios están inventados para la formación. Los finales conectan el método de diagnóstico con herramientas reales, pero no afirman una observación en vivo, un estado exclusivo de Google ni un resultado de negocio.
    • Los códigos de estado, las cabeceras, las redirecciones y el marcado de la página son evidencia pública observable. El rastreo de Google, la canonical seleccionada y las decisiones de indexación requieren una propiedad verificada de Search Console y no se infieren de estos escenarios.
    • Límites de la simulación
    • Toda la evidencia y los resultados son escenarios inventados, no mediciones de tu sitio. El grafo de escenarios no puede representar cada secuencia de investigación válida ni las restricciones de una organización. Completar un laboratorio no certifica la preparación para producción ni demuestra que una corrección funcionará en otro lugar. Los estados exclusivos de Google quedan fuera de la verificación pública y se señalan como tales.

    Preguntas frecuentes

    ¿Esto es un diagnóstico de mi sitio web?

    No. Los laboratorios enseñan una secuencia diagnóstica e identifican qué puede establecer la evidencia pública. Aplica las herramientas enlazadas y tus propias evidencias antes de hacer un cambio en producción.

    ¿Por qué el simulador distingue las comprobaciones públicas de Search Console?

    No. Cada incidente, URL, respuesta, cronología y resultado son datos ficticios incluidos con la página. El simulador no consulta tu sitio ni utiliza tus datos de Search Console.