https://carrero.es/

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  "markdown": "Último Artículo\n\n## [Cómo modernicé Bitadir.com: de PHP 4/5 a PHP 8.4 sin reescribirlo desde cero (y por qué merecía la pena)](https://carrero.es/como-modernice-bitadir-com-php-4-a-php-8-sin-reescribirlo-desde-cero/)\n\n4 de febrero de 2026\n\nBitadir.com no es “una web más”. Es un directorio de blogs en español que lleva 29 años online (desde 1996) y que, con el tiempo, ha terminado funcionando también como …\n\n[Leer más](https://carrero.es/como-modernice-bitadir-com-php-4-a-php-8-sin-reescribirlo-desde-cero/)\n",
  "fullPageMarkdown": "Carrero.es es el sitio personal de David Carrero Fernández-Baillo                                               [Saltar al contenido](https://carrero.es/#content \"Saltar al contenido\")\n\nÚltimo Artículo\n\n## [Cómo modernicé Bitadir.com: de PHP 4/5 a PHP 8.4 sin reescribirlo desde cero (y por qué merecía la pena)](https://carrero.es/como-modernice-bitadir-com-php-4-a-php-8-sin-reescribirlo-desde-cero/)\n\n4 de febrero de 2026\n\nBitadir.com no es “una web más”. Es un directorio de blogs en español que lleva 29 años online (desde 1996) y que, con el tiempo, ha terminado funcionando también como …\n\n[Leer más](https://carrero.es/como-modernice-bitadir-com-php-4-a-php-8-sin-reescribirlo-desde-cero/)\n\n### [Cuando la bandeja de entrada reescribe tu email: la Inteligencia Artificial y la nueva era de la “entregabilidad editorial”](https://carrero.es/cuando-bandeja-entrada-reescribe-tu-email/)\n\n10 de enero de 2026\n\n[Ver artículo](https://carrero.es/cuando-bandeja-entrada-reescribe-tu-email/)\n\n### [Tim Cook y las últimas lecciones de Steve Jobs: foco, equipos pequeños y el arte de cambiar a tiempo](https://carrero.es/tim-cook-y-ultimas-lecciones-steve-jobs/)\n\n6 de enero de 2026\n\n[Ver artículo](https://carrero.es/tim-cook-y-ultimas-lecciones-steve-jobs/)\n\n### [Mi “sistema de productividad” no es perfecto (y justo por eso funciona)](https://carrero.es/mi-sistema-de-productividad-no-es-perfecto-y-justo-por-eso-funciona/)\n\n15 de diciembre de 2025\n\n[Ver artículo](https://carrero.es/mi-sistema-de-productividad-no-es-perfecto-y-justo-por-eso-funciona/)\n\n### [No eres dueño de casi nada digital (y cómo estoy recuperando parte de lo perdido)](https://carrero.es/no-eres-dueno-de-casi-nada-digital-y-como-estoy-recuperando-parte-de-lo-perdido/)\n\n2 de diciembre de 2025\n\n[Ver artículo](https://carrero.es/no-eres-dueno-de-casi-nada-digital-y-como-estoy-recuperando-parte-de-lo-perdido/)\n\n### [Los nuevos feudos de Silicon Valley y el eco inquietante de El individuo soberano](https://carrero.es/nuevos-feudos-silicon-valley-el-eco-inquietante-el-individuo-soberano/)\n\n20 de noviembre de 2025\n\n[Ver artículo](https://carrero.es/nuevos-feudos-silicon-valley-el-eco-inquietante-el-individuo-soberano/)\n\n### [Mi cuenta @carrero ha sido suspendida por “inautenticidad”: lo que ha pasado y por qué pido una revisión en X](https://carrero.es/mi-cuenta-carrero-suspendida-inautenticidad-x-twitter/)\n\n17 de octubre de 2025\n\n[Ver artículo](https://carrero.es/mi-cuenta-carrero-suspendida-inautenticidad-x-twitter/)\n\n1[2](https://carrero.es/?query-22506824-page=2)[3](https://carrero.es/?query-22506824-page=3)…[519](https://carrero.es/?query-22506824-page=519) [Siguente](https://carrero.es/?query-22506824-page=2)\n\nBuscar:\n",
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    {
      "id": "improve_content_ratio",
      "priority": "critical",
      "category": "contentEfficiency",
      "titleKey": "rec.improve_content_ratio.title",
      "descriptionKey": "rec.improve_content_ratio.description",
      "howToKey": "rec.improve_content_ratio.howto",
      "effort": "moderate",
      "estimatedImpact": 6,
      "checkScore": 0,
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    },
    {
      "id": "add_markdown_negotiation",
      "priority": "critical",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_markdown_negotiation.title",
      "descriptionKey": "rec.add_markdown_negotiation.description",
      "howToKey": "rec.add_markdown_negotiation.howto",
      "effort": "significant",
      "estimatedImpact": 4,
      "checkScore": 0,
      "checkDetails": "No markdown content negotiation"
    },
    {
      "id": "add_content_signals",
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      "category": "aiDiscoverability",
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      "estimatedImpact": 3,
      "checkScore": 0,
      "checkDetails": "No Content-Signal header"
    },
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    },
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      "estimatedImpact": 4,
      "checkScore": 25,
      "checkDetails": "Main content starts at 76% of HTML"
    },
    {
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      "category": "semanticHtml",
      "titleKey": "rec.fix_heading_hierarchy.title",
      "descriptionKey": "rec.fix_heading_hierarchy.description",
      "howToKey": "rec.fix_heading_hierarchy.howto",
      "effort": "quick-win",
      "estimatedImpact": 6,
      "checkScore": 70,
      "checkDetails": "no <h1>"
    },
    {
      "id": "add_open_graph",
      "priority": "medium",
      "category": "structuredData",
      "titleKey": "rec.add_open_graph.title",
      "descriptionKey": "rec.add_open_graph.description",
      "howToKey": "rec.add_open_graph.howto",
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      "estimatedImpact": 4,
      "checkScore": 67,
      "checkDetails": "2/3 OG tags present"
    },
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      "id": "remove_inline_styles",
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      "category": "contentEfficiency",
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      "descriptionKey": "rec.remove_inline_styles.description",
      "howToKey": "rec.remove_inline_styles.howto",
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  "llmsTxtPreview": "# Carrero.es\n\n> Carrero.es en un blog iniciado por David Carrero Fernández-Baillo. Todo sobre Internet, Tecnología y Negocios. BA y emprendediendo otra vez con Stackscale.\n\n## Main\n- [Carrero.es es el sitio personal de David Carrero Fernández-Baillo](https://carrero.es/): Carrero.es en un blog iniciado por David Carrero Fernández-Baillo. Todo sobre Internet, Tecnología y Negocios. BA y emp…\n- [Mis inversiones BA](https://carrero.es/inversiones/)\n- [Newsletter](https://carrero.es/boletin/)\n- [Suscribete al RSS](https://carrero.es/feed)\n- [Contacto](https://carrero.es/contactar/)\n\n",
  "llmsTxtExisting": "# Carrero.es\n\n> Carrero.es en un blog iniciado por David Carrero Fernández-Baillo. Todo sobre Internet, Tecnología y Negocios. BA y emprendediendo otra vez con Stackscale.\n\n## Main\n- [Carrero.es es el sitio personal de David Carrero Fernández-Baillo](https://carrero.es/): Carrero.es en un blog iniciado por David Carrero Fernández-Baillo. Todo sobre Internet, Tecnología y Negocios. BA y emp…\n- [Mis inversiones BA](https://carrero.es/inversiones/)\n- [Newsletter](https://carrero.es/boletin/)\n- [Suscribete al RSS](https://carrero.es/feed)\n- [Contacto](https://carrero.es/contactar/)",
  "snippets": [
    {
      "id": "fix_heading_hierarchy",
      "title": "Fix heading hierarchy",
      "description": "Your page has no <h1>. Every page needs exactly one <h1> as the main heading. Add it inside your <main> or <article>.",
      "language": "html",
      "code": "<h1>Carrero.es es el sitio personal de David Carrero Fernández-Baillo</h1>",
      "filename": "<main> or <article>"
    },
    {
      "id": "add_open_graph",
      "title": "Add missing Open Graph tags",
      "description": "These tags control how your page looks when shared on social media and some AI platforms.",
      "language": "html",
      "code": "<meta property=\"og:image\" content=\"https://yoursite.com/og-image.jpg\">\n<meta property=\"og:url\" content=\"https://carrero.es/\">\n<meta property=\"og:type\" content=\"website\">",
      "filename": "<head>"
    },
    {
      "id": "add_content_signals",
      "title": "Add Content-Signal HTTP header",
      "description": "The Content-Signal header tells AI agents about the nature of your content. Add it via your web server or CDN.",
      "language": "nginx",
      "code": "# Nginx — add to your server block:\nadd_header Content-Signal \"type=website; lang=es\" always;\n\n# Apache — add to .htaccess:\n# Header set Content-Signal \"type=website; lang=es\"",
      "filename": "nginx.conf or .htaccess"
    },
    {
      "id": "add_markdown_negotiation",
      "title": "Support Accept: text/markdown",
      "description": "When a client sends Accept: text/markdown, respond with a Markdown version of the page. This is the gold standard for AI-readiness.",
      "language": "nginx",
      "code": "# Nginx — serve .md files when client requests Markdown:\n# Option 1: Serve pre-generated .md files\nmap $http_accept $markdown_suffix {\n  default \"\";\n  \"~text/markdown\" \".md\";\n}\n\n# Then in your location block:\ntry_files $uri$markdown_suffix $uri =404;\n\n# Option 2: Use your app framework to check the Accept header\n# and return Markdown content with Content-Type: text/markdown",
      "filename": "nginx.conf or application code"
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}

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