On-page SEO
Review title, description, canonical, headings, image alt text, language settings, and indexability.
Chrome extension for practical SEO audits
SEO Quality Checker
Audit the page you are viewing in about 30 seconds.
Check titles, headings, canonical URLs, structured data, target keywords, competitors, speed, and tracking tags without leaving the page. AI then turns the findings into prioritized next actions.
Start free. No paid plan is required for core checks.
30 secto actionable findings
10 areasreviewed in one panel
JP / ENinterface languages
What it checks
The checks needed before publishing, in one place
It is not a generic score alone. Each result stays connected to the page element, risk, and improvement action.
Structured data
Detect JSON-LD types, required fields, recommendations, and mismatches between markup and visible content.
Keyword analysis
Measure target keyword placement across title, meta, H1-H3, opening copy, body, and image alt text.
Competitor comparison
Compare your page with a competitor URL and use both pages as context for the AI audit.
Speed and link health
Check lab performance metrics, internal and external links, cache policy, and low-value anchor text.
Tracking and CRO
Inspect analytics, tag manager, heatmap, and ad signals with conservative duplicate-detection logic.
A practical workflow
From page review to an improvement brief
Open the extension on any page, enter a target keyword, run the standard checks, add a competitor when needed, and then ask AI to prioritize the work.
1
Open the page
The current URL and page data are loaded automatically.
2
Run the standard audit
Core findings remain available while you move between analysis views.
3
Add context
Enter a target keyword and an optional competitor URL.
4
Run AI Audit
Receive intent, risk, priority, and concrete improvement actions.
Audit coverage
One extension for SEO, AIO, and pre-publish quality control
Use the summary for a quick decision, then open the detailed view only when a deeper review is needed.
Page fundamentalsTitle, description, canonical, URL normalization, language, and robots signals
Content structureH1-H4 hierarchy, heading gaps, keyword placement, and accessibility checks
Rich resultsSchema types, required properties, recommendations, and front-end consistency
Technical signalsPerformance metrics, cache policy, link health, and tracking implementation
Search competitionTwo-page comparison, SERP context, search intent, and missing topics
ReportingExcel export and shareable evidence for internal or client review
Simple pricing
Paid plans differ only by monthly AI audit limits
All paid features are included from Plus. Choose a plan based on how often you need AI Audit.
Free
¥0
Core SEO checks and 5 AI audits per month.
Choose planPlus
¥100/ month
All paid features and 25 AI audits per month.
Choose planPro
¥500/ month
All paid features and 125 AI audits per month. 5x Plus.
Choose planUltra
¥1,000/ month
All paid features and 500 AI audits per month. 20x Plus.
Choose plan
Who it is for
Designed for repeated SEO work
Web teams
Catch title, heading, schema, and link issues before publishing.
SEO consultants
Turn findings and competitor context into a prioritized client brief.
Content teams
Check keyword placement and search intent without switching tools.
Data and billing
Clear boundaries for page data and payments
The service is not designed to retain analyzed page body content long term. AI audit inputs and generated results are not used to train our own AI models. Payments are processed by Stripe, and card details are not stored on our server.
Co-development
Built by SEO practitioners and software engineers
SEO Quality Checker is co-developed by Universal Marketing Inc. and Ullr Inc.
Frequently asked questions
Before you start
What can I use for free?
Core SEO checks and 5 AI audits per month are available on the Free plan.
Do paid plans have different features?
No. Plus, Pro, and Ultra include the same paid features and differ only by monthly AI audit limits.
Is analyzed page content used for AI training?
AI audit inputs and generated results are not used to train our own AI models. The service uses Google Gemini API.
When do AI audit limits reset?
AI audit usage resets on the first day of each month. Billing dates are based on the subscription start date.
Can I cancel at any time?
You can schedule cancellation from the billing portal and keep paid access until the current billing period ends.
Does it support teams?
Individual accounts are available now. Contact us to discuss team workflows or billing requirements.
Review your next page before it goes live
Install the extension, open a page, and turn scattered SEO checks into one clear list of next actions.