Complete User Manual

1 Installation

1.1. Install from Chrome Web Store

1. Visit the Chrome Web Store and search for "SEOwer Pro".
2. Click on "Add to Chrome".
3. Confirm the installation in the popup dialog.
4. Done! You will see the SEOwer icon in your browser's extensions bar.

1.2. Requested Permissions

SEOwer requests the following permissions to function:

• activeTab: access to the active tab when you request it.
• scripting: inject the SEO bar and panels into pages.
• storage: save your preferences (language, theme, position).
• tabs: manage opening the control panel.
• Host permissions (): the extension needs to be able to read the content of any website to analyze it. It doesn't transmit data to any server.

1.3. Compatibility

SEOwer Pro is compatible with all Chromium-based browsers:

• Google Chrome (v88+)
• Microsoft Edge (v88+)
• Brave
• Opera
• Vivaldi
• Arc

2 First Use

2.1. Activate the Blue Bar

1. Navigate to any web page (for example, wikipedia.org).
2. Wait 2-3 seconds. The SEOwer blue bar will automatically appear at the top of the page.
3. You'll see the "SEOwer PRO" logo on the left and the main SEO metrics on the right.

2.2. Open the Dashboard

You have several ways to open the full panel:

• From the blue bar: click the "Open Panel" button (right end).
• From the extension icon: click the SEOwer icon in the browser bar and then "Open Full Panel".
• Keyboard shortcut (optional): you can configure a shortcut at chrome://extensions/shortcuts.

2.3. Select Language

The first time you open the panel, you'll see a language selector. SEOwer automatically detects your browser's language, but you can change it anytime from the hamburger menu (☰) → Language.

3 The Blue Bar (SEObar)

The blue bar is SEOwer's main interface. It appears at the top (or bottom, depending on your preference) of any website you visit. It has three contextual modes:

3.1. Normal Web Mode

It's shown on any standard web page. Contains from left to right:

• Logo SEOwer PRO
• Main Keyword with its percentage density (automatically detected).
• Total words of the page.
• H1 / H2 / H3-H6 count of each heading level.
• Internal / External Links.
• Total Images, with warning in parentheses if there are images without ALT.
• Scores: SEO, AI/GEO, Structure and Readability (each /100).
• "Open Panel" button to open the full panel.
• Settings (theme, position, snooze).
• Close the bar (you can restore it from the popup).

3.2. Google Mode (Homepage)

When you visit google.com without searching, the bar shows:

• SEOwer PRO logo.
• An animated banner with the message: "Transform data into decisions. Each SERP analyzed is a gained advantage..."
• Configuration and close buttons.

3.3. Google SERP Mode

When you're on the Google results page (google.com/search?q=...), the bar shows live analysis of the positioned results:

• Searched Keyword (in quotes).
• Meta Title Average: average character count of positioned titles.
• Meta Description Average: average character count of descriptions.
• Slug Average: average word count of the slug (last URL segment).
• Levels: URL depth distribution (N0, N1, N2, N3+).
• Includes dates: how many results show dates in their content (fresh content signal).

Additionally, on the Google page you'll see two additional panels injected by SEOwer:

• Premium panel under each organic result with title, description, depth, SEO score (●●○○○) and "TECH & SPEED" button to audit that URL with one click.
• Right side panel "SERP Analyzer" with 5 tabs (1 to 5-word n-grams) showing the most frequent terms in positioned snippets. It's a brutal tool for identifying which terms Google associates with your keyword.

4 Bar Configuration

Click the settings icon (gear) on the blue bar to open the settings panel. It has 3 sections:

4.1. Color Theme

Choose between Light (for light backgrounds) or Dark (the default theme, ideal for all websites). The change applies instantly.

4.2. Bar Position

Select if you prefer the bar Top or Bottom of the page. The bottom bar is useful to not cover the website's navigation menu.

4.3. Hide Bar (Snooze)

If you don't want to see the bar for a while, you can silence it:

• 24h: the bar is hidden for 24 hours.
• 1 week: it's hidden for 7 days.
• Always: the bar is permanently hidden (you can revert it from the popup).

4.4. Restore Bar

When the bar is hidden, a small tab (chevron) appears in the corresponding position. Click it to restore it immediately, or from the extension popup, click "Restore Hidden Bars" to clear all snooze state and reload the page.

5 The Dashboard

The panel is the detailed view of the entire audit. It's divided into 8 sections accessible from the left sidebar menu. The active section is persisted in storage, so when you open the panel again you'll find yourself where you left off.

5.1. Hamburger Menu (☰)

In the upper left, next to the SEOwer logo, you'll see the three horizontal lines icon. When clicked, 3 options unfold:

• Instructions: link to this page.
• Send feedback: feedback form.
• Language: interface language selector.

5.2. CTA Card - Google Docs

At the bottom of the sidebar you will see a promotional card for the SEOwer add-on for Google Docs. Click "Install Add-on" to open Google Workspace Marketplace.

6 Section 1: Diagnostic

It's the first section you'll see when opening the panel. It offers a panoramic view of the page's SEO health.

6.1. Semantic Authority Score (Radar)

A 4-axis radar with weighted score (0-100):

• SEO (35%): meta tags, H1, keyword distribution, etc.
• Structure (30%): density, lists, tables, images.
• AI/GEO (20%): schema, semantic HTML, AEO, Q&A.
• Readability (15%): Flesch, short sentences, human markers.

The global score color changes according to the value:

• ● Green (80-100): Excellent. The page is well optimized.
• ● Orange (50-79): Acceptable. There are clear areas for improvement.
• ● Red (0-49): Needs urgent work.

6.2. SERP Simulator

A visual representation of how your page would look in Google search results. It shows the favicon, site name, URL, title (in blue, like Google) and meta description. It helps you verify if your snippets are attractive and well formatted.

6.3. Global Summary of Technical Elements

A table with 5 rows summarizing the page's key data:

• Text Metrics: characters, words, bold count.
• Meta Tags and URL: title and description length, slug.
• Headings Distribution: H1, H2, H3-H6.
• Links Audit: internal and external.
• Multimedia: total images, with ALT, without ALT.

6.4. Content Visual Schema

A hierarchical representation of the content based on headings. Each block shows:

• Heading label (H1, H2...)
• Heading text
• Section words and characters
• Badges with count of images (IMG), videos (VID), internal links (INT.LINKS), external links (EXT.LINKS), tables (TAB) and lists (LIST).

Indentation increases according to the heading level, giving you a panoramic view of the article structure.

7 Section 2: AI & GEO

This section is dedicated to optimization for AI-powered answer engines (ChatGPT, Perplexity, Gemini, Claude, etc.). It includes:

7.1. Trust and Authority (E-E-A-T)

It evaluates Google's E-E-A-T pillars (Experience, Expertise, Authority, Trust):

• Data Density: counts figures, years and percentages. AIs reward content with empirical data.
• Citas o Fuentes: presencia de blockquotes y referencias.

7.2. Answer Engine Format (AEO)

Measures your content's ability to be extracted as a direct answer:

• AEO Paragraph (60-80 words): detects paragraphs of optimal length for featured snippets.
• Lists and Tables: counts these structured elements.
• Q&A Format: detects conversational questions and answers (ideal for voice search).

7.3. Naturalness and Readability (Anti-AI)

This is the crown jewel. It has 2 columns:

• Left - Readability Index (Flesch): uses formulas adapted to each language (Fernández-Huerta for Spanish, Amstad for German, Flesch-Vacca for French, etc.).
• Right - Anti-AI Markers (7 metrics): detects typical AI clichés, excessive connectors, opinion, over-explanation, robotic formatting, short AI-style titles, and uniform structure. It also measures human markers (presence of "I", "in my experience"...).

7.4. Structured Data (Schema.org)

Shows the detected JSON-LD blocks and schema types (Article, Product, FAQ, HowTo, etc.). If there's no schema, it warns you in red.

7.5. Detailed GEO Breakdown

Expanded information about:

• Complete JSON-LD code with syntax highlighting.
• HTML5 semantic architecture (article, main, nav, aside...).
• Extracted conversational Q&A pairs.
• HTML of detected tables.
• Structured lists with the first 5 elements.

8 Section 3: Headings

A detailed view of your content's hierarchical structure.

8.1. Visual Summary

A row with 6 boxes (H1 to H6) showing the count of each level. Useful for detecting problems like:

• ✕ Multiple H1s (bad SEO).
• ✕ Total absence of H1.
• ✕ Level jumps (H1 → H3 without H2).

8.2. Heading Tree

Tree view with dotted connector lines and color badges. Each heading is shown with its actual text.

8.3. "Copy Headings" Button

Copies all headings to the clipboard in H1 - Text format. Ideal for pasting into another document or doing a quick audit. The button changes to "✔ Copied" for 2 seconds.

9 Section 4: Keyword Density

N-Gram analysis from 1 to 5 words. It has 5 tabs (1, 2, 3, 4, 5 Words) and each shows a table with:

• Word combination (keyword or n-gram).
• Number of appearances.
• Density (% over total words).

9.1. Main Keyword Detection

SEOwer automatically detects your main keyword using a scoring system:

• 40 points: appears in the title.
• 30 points: appears in the slug.
• 20 points: appears in the meta description.
• +0.5 points for each additional appearance.

Automatically filters words with less than 4 characters. This keyword is shown in the blue bar and is used in the Diagnosis panel.

10 Section 5: Images

Complete audit of all page images. Table with 5 columns:

• View: thumbnail (50x50) with SVG placeholder if loading fails.
• Name: filename extracted from the URL.
• ALT attribute: alternative text (shows "No ALT" in red if missing).
• Dimensions: width x height in pixels.
• Estimated Weight: size in KB, calculated in real time via a HEAD request to the server.

10.1. Additional Statistics

SEOwer also analyzes internally (visible in the content script console):

• Images en formato moderno (WebP, AVIF, HEIC, JXL).
• Images con lazy loading.
• Images sin dimensiones definidas (riesgo de CLS).
• Images grandes (>200KB).

11 Section 6: Links

Complete audit of all page links.

11.1. Counters

At the top you'll see two colored badges:

• ● Internal: N (green)
• ● External: N (blue)

11.2. Filter by Origin

A dropdown allows you to filter links according to their DOM location:

• All
• Header (header)
• Footer (footer)
• Menu (navigation menu)
• Body / Content (article body)

11.3. Links Table

Each link is classified with:

• URL complete.
• Type: Internal (green) or External (blue).
• Origin: Header, Footer, Menu or Body.
• Follow: Do Follow, No Follow, Sponsored, UGC or Unknown.
• Anchor: anchor text of the link.

11.2. Filter by Origin

A dropdown allows you to filter links according to their DOM location:

• Todos
• Header (header)
• Footer (footer)
• Menu (navigation menu)
• Body / Content (article body)

This helps you evaluate if your strategic links are in the content body (where they matter most for SEO) or only in menus and footers.

11.3. Links Table

Each link is classified with:

• Type: Internal (green) or External (blue).
• Origin: Header, Footer, Menu or Body.
• Follow: Do Follow, No Follow, Sponsored, UGC or Unknown.
• Anchor: anchor text of the link.

12 Section 7: Competitive Comparison

Compare your page with up to N competitors in a table of 35+ metrics.

12.1. How to Use It

1. Copy your competitors' URLs (one per line) in the textarea.
2. Click on "Generate SEO Comparison".
3. Wait a few seconds while SEOwer analyzes each URL (it may take longer depending on how many you enter).
4. A table will appear with your site (first column) and each competitor (additional columns).

12.2. Compared Metrics

The table includes metrics grouped into:

• Identity: URL, Title, Title (characters).
• Meta: Meta Description, Description (characters), Canonical, Robots, Language (lang).
• Content: Total words, Characters, Text/HTML Ratio.
• Keyword Density: 1/2/3/4/5 word density.
• Headings: H1, H2, H3, H4.
• Images: Total, with ALT, without ALT, % with ALT.
• Links: Internal, External.
• Social: OG Title, OG Description, OG Image, Twitter Card.
• Schema: Schema JSON-LD, Schema Types.
• Technical: Favicon, Viewport, HTTPS/SSL.

Boolean values are shown as green (Yes) or red (No) badges.

13 Section 8: Tech & Speed

Detection of the technological stack and shortcuts to external tools.

13.1. Detected Tech Stack

15 categories with automatic detection:

• Content Management System (CMS): WordPress, Shopify, Wix, Joomla, PrestaShop, Drupal, Squarespace, Webflow, Ghost, Magento.
• SEO Plugins: Yoast, Rank Math, All in One SEO, SEOPress, Schema Pro.
• Analytics: Google Analytics, Meta Pixel, Hotjar, Clarity, TikTok Pixel, Matomo, comScore.
• Tag Managers: Google Tag Manager, Sentry.
• Marketing: Google AdSense, Criteo, Taboola, Prebid, HubSpot, AppNexus.
• JS Frameworks: React, Next.js, Vue, Nuxt, Angular, Svelte, jQuery, Bootstrap, Tailwind.
• CDN: Cloudflare, Akamai.
• Players: YouTube, Vimeo.
• Typography: Google Fonts, Font Awesome.
• Performance: WP Rocket, LiteSpeed Cache, W3 Total Cache, LazySizes.
• Security: reCAPTCHA, FingerprintJS.
• Others: HTTP/2, HTTP/3, Open Graph, PWA, RSS.

Each technology shows its official logo (via SimpleIcons) with a gray fallback dot.

13.2. Direct Access

One-click buttons to external tools using the current domain:

• robots.txt file
• sitemap.xml file
• View Google indexing (site: operator)
• Archive.org history (Wayback Machine)
• Whois (domain registration data)

13.3. Core Web Vitals

A button that opens PageSpeed Insights directly for the analyzed URL. Useful for diving into LCP, CLS, INP, FCP and TTFB.

14 The Quick Popup

Click the SEOwer icon in the browser bar (not the blue bar on the web, but the extension icon) to open the popup. It is a quick 380px window with:

• Blue header with SEOwer PRO logo and version.
• Title Card: shows the current page title.
• Total Characters Card: shows the word count of the page.
• Quick action buttons:
  • Diagnosis: opens the panel in the Diagnosis section.
  • AI and GEO Analysis: opens the panel in the GEO section.
  • Open Full Panel: opens the panel in the default section (Diagnosis).
  • Restore Hidden Bars (orange): clears snooze and reloads the tab.

15 Google Docs Add-on

SEOwer is also available as an official add-on for Google Docs / Google Workspace. It's one of the best SEO assistants and auditors for Google Docs on the market.

15.1. What makes it different from the extension?

The Google Docs add-on audits your content in real time while you write it, not when you publish it. It helps you:

• Optimize keyword density on the fly.
• Detect AI clichés while writing.
• Receive secondary keyword suggestions.
• Measure multilingual readability in draft.
• Apply GEO recommendations for LLMs before publishing.

15.2. How to Install the Add-on

1. Visit Google Workspace Marketplace.
2. Click on "Install" and follow the steps.
3. Open Google Docs, go to Extensions → SEOwer.
4. Start writing and you'll see the analysis in the side panel.

15.3. Compatibility with the Extension

The add-on and extension scoring systems are aligned, so the recommendations you see in Google Docs correspond to the metrics you'll see later when analyzing the published URL with the Chrome extension.

16 Language Change

SEOwer is available in 6 languages: Spanish, English, German, French, Italian and Portuguese.

16.1. From the Dashboard

1. Click the hamburger menu (☰) in the panel.
2. Select Language.
3. Choose your preferred language.
4. The panel updates instantly.

16.2. Automatic Detection

The first time you install SEOwer, it will detect your browser's language. If you want to change it later, you can do so at any time.

16.3. Blue Bar Language Change

The blue bar is also automatically translated when you change the language from the panel. If you navigate to a new page, the bar will be recreated in the selected language.

16.4. Language Privacy

Your language preference is saved locally in your browser (chrome.storage.local). It's not sent to any server.

17 Frequently Asked Questions (FAQ)

❓ Is SEOwer free?

Yes, 100% free. No premium version, no micropayments, no upsells. The goal is to democratize access to professional SEO tools.

❓ Does it send my data to any server?

No. All auditing is done in your browser. Information is only sent if you voluntarily use the "Send feedback" form.

❓ Why do some images show weight as "Blocked for security"?

Some servers block CORS (Cross-Origin Resource Sharing) requests. This is not an SEOwer error, but a configuration of the image server. In these cases, use PageSpeed Insights to get the actual weight.

❓ Does it work on login pages (Gmail, online banking, etc.)?

For security, SEOwer does not activate on certain restricted pages. The blue bar won't appear on them, but the control panel will remain accessible.

❓ Does it consume many resources?

No. SEOwer uses chrome.storage.local and maintains a 5-minute cache per URL. RAM consumption is minimal.

❓ Why don't I see the blue bar on some websites?

This may be because:

• The website has a very restrictive CSP policy that blocks extensions.
• You have silenced the bar (check the popup and click "Restore Hidden Bars").
• It's an internal domain (chrome://, about:, file://...).

❓ How can I suggest an improvement?

Use the "Send feedback" form in the panel's hamburger menu. I personally read every feedback.

Do you plan to add more languages?

Yes, if there's demand. The next languages will be: Chinese, Arabic and Japanese.

❓ Can I use SEOwer to audit competitor websites?

Of course. All the information that SEOwer analyzes is public and accessible simply by visiting the URL. Use it ethically to understand the sector and improve your own content.

❓ Does the Google Docs add-on have a cost?

No, it's also free. The add-on and extension are complementary: use the extension to analyze published websites and the add-on to optimize drafts before publishing.

❓ How do I contact the developer?

By email at hola@agenciaseonetbulb.com or via LinkedIn (@jorgesanmos). I usually respond in 24-48h.