Find and Fix Technical SEO Issues with SEOFixi

Audit public sites, localhost, and JavaScript SPAs directly in Chrome. Runs 100% locally on your machine with total privacy, pinpointing issues that impact your search rankings and AI visibility.

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100% Local Privacy · 80+ Technical Checks · Zero Configuration · Chrome Web Store

// technical diagnostics

Fix Technical SEO Flaws Before Launch

Broken canonicals, slow server response, and blocked scripts prevent search engines from indexing your pages properly. Catch and fix technical regressions directly in your browser.

01

A unified 0–100 technical health score

Instead of drowning in thousands of cosmetic notices, get a structured assessment across Meta, Headings, Content, and Assets. Resolve high-severity issues first with actionable guidance.

  • Single health score weighted by real SEO severity
  • Structured breakdown: Meta, Headings, Content, Assets
  • Clear step-by-step remediation guidance for developers
Post-Fix Optimization Score
  • Content
    948 warn
  • Technical
    916 warn
  • Resources
    8912 warn
  • Indexation
    981 warn
Overall92/100Launch ready
02

Catch Title and Headline topic mismatches

Search engines verify whether your <title> tags match your <h1> headlines. SEOFixi checks semantic alignment between what Google indexes in snippets and what visitors see on your pages.

  • Identifies Title ↔ H1 semantic topic mismatches
  • Catches missing, duplicate, or truncated title tags
  • Detects duplicate or missing H1 headings across URLs
Content topic mismatch
/pricing
TitlePlans and pricing for teams
H1Start your free trial today
/blog/speed
TitleHow to speed up WordPress
H1Our favorite hosting deals
/about
TitleAbout the company
H1Download the mobile app

Low semantic alignment between Title and H1

03

Real Core Web Vitals & server benchmarks

Audit performance directly in Chrome. Measure real-world Core Web Vitals (LCP, TBT, CLS) and server TTFB to uncover render-blocking resources and uncompressed assets before deploying to production.

  • Live Core Web Vitals benchmarks: LCP, TBT, and CLS
  • Server response time (TTFB) and compression status
  • Pinpoints render-blocking scripts and oversized media
Speed & responsiveness
LCP1.2sGood
TBT528msNeeds work
CLS0.01Good
136ms average server TTFBAcceptable performance
04

Domain reputation & backlink diagnostics

Inspect your referring domains, overall domain authority rating, and toxic link risks without needing separate expensive subscriptions.

  • Top referring domains and total backlink distribution
  • Domain authority rating (0–100) and link equity
  • Spam score detection to prevent search penalties
Domain Reputation & Backlink Profile
Authority Score
68/100
Referring Domains
11,779
Total Backlinks
48,320
Spam Score
4% Very Low
Referring domain Links count Domain rating Status
producthunt.com 142 High Clean
techcrunch.com 38 High Clean
smashingmagazine.com 19 High Clean
dev.to 84 High Clean

// how it works

How in-browser auditing works

Zero remote servers, zero IP blocks. Run deep site audits directly through your authentic Chrome session in three simple steps.

  1. Add the extension

    Install from the Chrome Web Store in seconds with zero configuration required.

  2. Scan in one click

    Open any tab and launch the audit. Our crawler explores your internal pages and evaluates your live architecture.

  3. Fix issues by priority

    Get an actionable checklist ordered by ranking impact. Fix root errors, re-scan instantly, and verify results.

Traditional Cloud Crawlers

External Scrapers & Cloud Bots

Old-school scraper bots that run from distant data centers and generate bloated spreadsheets with thousands of trivial notices.

  • Bloated, noisy reports Dumps thousands of minor notices, burying critical indexing bugs under endless rows of spreadsheet noise.
  • Blocked by firewalls Data-center IPs get stopped by Cloudflare, rate limits, and anti-bot shields before finishing.
  • Blind to local & staging Cannot reach localhost:3000, private test environments, or pages behind authentication.
  • Fails on JavaScript SPAs Reads only raw static HTML, completely missing content and links rendered dynamically by React, Vue, or Next.js.
  • Sends code to third parties Requires server credits and stores your internal URLs, pre-launch code, and site data on third-party cloud servers.
Client-Side Architecture

SEOFixi In-Browser Engine

Professional in-browser engine. It audits through your authentic browser identity, executes JavaScript naturally, and keeps 100% of your data private.

  • Strictly actionable errors & warnings Zero trivial noise or vanity charts. Every warning points to a specific issue that directly impacts search rankings.
  • Deep crawl of core pages Follows internal links and inspects core architecture within your crawl budget, instead of a superficial homepage-only sample.
  • Audits localhost, staging & auth pages If you can open it in Chrome, our crawler can audit it. Catch technical SEO mistakes before deploying code to production.
  • Full JavaScript & SPA rendering Audits through Chrome's authentic DOM engine, executing React, Vue, Next.js, and client-side code just like Googlebot.
  • 100% local privacy — zero data leaves your PC Runs entirely on your machine. Source code, staging URLs, passwords, and audit reports never touch external servers.

// 80+ technical checks

Every factor that impacts search traffic

Live DOM inspection and site architecture audits with zero vanity metrics. Just clear, actionable diagnostics on what to fix.

Titles & Descriptions

What searchers see in Google before deciding to click.

  • Missing, duplicate, or overly short page titles
  • Descriptions that exceed character limits and get cut off
  • Canonical tags accidentally pointing bots to the wrong URL
  • Open Graph & Twitter card previews for clean social sharing

Headings & Text Quality

Helpful, well-structured text that search engines trust.

  • Missing, duplicate, or multiple H1 headings on a page
  • Thin pages with too little helpful text for searchers
  • Duplicate or copy-pasted content across different URLs
  • Topic mismatch between your headline (H1) and page title

Images & Media

Fast-loading visuals that bots and users can understand.

  • Images missing alt text for screen readers and search bots
  • Heavy image file sizes that slow down mobile visitors
  • Uncompressed pictures missing modern WebP format
  • Broken image paths resulting in blank media and 404 errors

Code, Mobile & SPAs

Clean HTML and JavaScript that loads smoothly on all devices.

  • Full rendered DOM inspection for React, Vue, and Next.js SPAs
  • Oversized page code and bloated DOM trees that slow crawlers
  • Cluttered inline scripts that delay page rendering
  • Missing mobile viewports and responsive layout errors

Speed & Performance

Fast load times that keep visitors from bouncing.

  • Core Web Vitals: LCP (loading), TBT (interactivity), CLS (stability)
  • Server response time (TTFB) before page content begins loading
  • Render-blocking styles and scripts delaying initial display
  • Missing browser cache headers forcing repeat downloads

Links & Site Structure

How easily Google and real visitors discover all your pages.

  • Lost orphan pages with no internal links pointing to them
  • Important pages buried too many clicks away from home
  • Malformed URL structures, double slashes, and broken links
  • Too many outgoing links draining your page authority

Indexation & Redirects

Making sure your best pages actually get indexed by Google.

  • Broken redirect chains and endless loops that trap crawlers
  • Temporary 302 redirects failing to pass search ranking value
  • Dead links and 404 error pages that waste crawl budget
  • Accidental noindex tags hiding valuable pages from Google

Security, Sitemaps & AI

Site foundations, search sitemaps, and new AI engines.

  • Mixed content warnings, SSL certificate health, and HTTPS rules
  • Split traffic between www and non-www versions of your domain
  • XML sitemaps missing fresh URLs or pointing to broken links
  • robots.txt and llms.txt validation for Google, ChatGPT, and Claude

// pricing

Simple, transparent pricing

Choose the pass that fits your project. Single one-time payment with zero auto-renewals or recurring fees.

Free Plan

Free
$ 0 / forever

Essential on-page SEO scanner.

  • 1 domain
  • Up to 150 pages
  • Unlimited scans
  • Static pages & SSR scan

Starter Pass

1 Month
$ 12 / 1 month

Complete technical SEO audit engine.

  • 5 domains
  • Up to 500 pages
  • Unlimited scans
  • Full client-side JS & SPA rendering
  • Download reports
  • Backlinks analysis
  • Comparison history

Pro Pass

Best Value • Save 50%
$ 72 / 1 year

Full-power audit engine for professionals.

  • 25 domains
  • Up to 1,500 pages
  • Unlimited scans
  • Full client-side JS & SPA rendering
  • Download reports with company logo
  • Backlinks analysis
  • Comparison history

// faq

Frequently asked questions

Clear answers on GDPR compliance, privacy, and one-time access.

Are there really no subscriptions?

Yes, absolutely no subscriptions. You pay once for 1 month or 1 year of access with unlimited scans. No recurring charges, no auto-renewals, and no stored cards — renew manually only when your next audit cycle requires it. When your pass expires, your account remains active on the Free tier with ongoing access for the last domain added to the system.

What payment methods do you accept, and are invoices provided?

We accept all major credit and debit cards, Alipay, and Google Pay through our secure checkout. Applicable regional VAT or sales taxes are calculated transparently, and compliant B2B tax receipts and invoices are automatically issued for accounting and business expense reporting.

Can I audit localhost, staging, and password-protected pages?

Yes. Because the crawler operates from your active browser session, you can audit localhost development ports (e.g., localhost:3000), internal staging domains, and pages behind authentication or VPNs without configuring proxy tunnels, IP whitelisting, or firewall exceptions.

How does SEOFixi ensure EU GDPR and corporate compliance?

Unlike SaaS platforms that ingest proprietary URLs, staging paths, and code into external cloud databases, SEOFixi operates entirely client-side. Zero crawl data is collected, accumulated, or processed by our infrastructure. This privacy-by-design architecture guarantees that you act neither as an exporter of sensitive infrastructure data nor require complex Data Processing Agreements (DPAs). It inherently complies with strict EU GDPR and cross-border transfer requirements (Schrems II), completely eliminating third-party cloud breach liabilities.

Where are audit reports stored, and how is data erased?

All crawl archives, discovered URLs, and issue databases reside solely within your browser's sandboxed Origin Private File System (OPFS), protected by your operating system's local access controls. You retain absolute data sovereignty. Uninstalling the extension or clearing extension storage permanently and irreversibly purges all local databases from your device.

Audit your website in minutes

Install the Chrome extension, run your first crawl, and see your prioritized technical SEO checklist instantly.

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