Pricing

Start free and upgrade as you need.

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Trial

Free

10 checks/month with registration

¥0
  • 10 checks/month (resets monthly)
  • Suggest 5/day
  • Site diagnosis: 5 pages / 3 times total
  • Query fan-out (included in suggest quota)
  • SEO score (out of 83)
  • Domain power
  • Core Web Vitals measurement
  • Local SEO audit
  • Basic Technical SEO (3 items)
  • ┗ HTTPS check
  • ┗ Mobile-friendly check
  • ┗ Page speed
  • Marketing checklist (PDF)
Most Popular

Entry

For keyword research starters

¥980/mo
  • 30 checks/month
  • Suggest 500/month
  • Site diagnosis: 10 pages
  • Query fan-out (included in suggest quota)
  • Headings & co-occurrence 30/month
  • Search volume top 10
  • CSV download
  • SEO score (out of 92)
  • Domain power
  • Domain age display
  • Core Web Vitals measurement
  • Local SEO audit
  • Basic Technical SEO (3 items)
  • ┗ HTTPS check
  • ┗ Mobile-friendly check
  • ┗ Page speed
  • Marketing checklist (PDF)
  • Save check history
  • Score trend graph

50% OFF for first 3 months

Code: X3WZHYEC

For Writers & Marketers

Basic

For serious SEO analysis

¥2,980/mo
  • 100 checks/month
  • Suggest 1,000/month
  • Site diagnosis: 30 pages
  • Improvement code generation
  • Query fan-out (included in suggest quota)
  • Headings & co-occurrence 100/month
  • Search volume all
  • Ranked KW top 20 / 30/month
  • CSV download
  • SEO score (out of 94)
  • Domain power
  • Domain age display
  • Core Web Vitals measurement
  • Local SEO audit
  • Technical SEO (5 items)
  • ┗ HTTPS check
  • ┗ Mobile-friendly check
  • ┗ Page speed
  • ┗ Sitemap analysis
  • ┗ llms.txt check
  • Marketing checklist (PDF)
  • Save check history
  • Score trend graph
  • Competitor comparison (3 sites at once)

50% OFF for first 3 months

Code: X3WZHYEC

For Agencies

Pro

For large sites & agencies

¥9,800/mo
  • 300 checks/month
  • Suggest 3,000/month
  • Site diagnosis: 50 pages
  • Improvement code generation
  • Query fan-out (included in suggest quota)
  • Headings & co-occurrence unlimited
  • Search volume all
  • Ranked KW top 100 / 100/month
  • CSV download
  • SEO score (out of 100)
  • Domain power
  • Domain age display
  • Core Web Vitals measurement
  • Local SEO audit
  • Full Technical SEO (9 items)
  • ┗ HTTPS check
  • ┗ Mobile-friendly check
  • ┗ Page speed
  • ┗ Security headers check
  • ┗ Redirect chain detection
  • ┗ Sitemap analysis
  • ┗ llms.txt check
  • ┗ Tech stack detection
  • ┗ Image optimization check
  • Marketing checklist (PDF)
  • Save check history
  • Score trend graph
  • Competitor comparison (6 sites at once)
  • PDF report export

50% OFF for first 3 months

Code: X3WZHYEC

Enterprise Plan

For those who want full web management

Custom Quote

  • All Pro plan features
  • SEO strategy planning & execution
  • Content planning & improvement
  • Site renovation & coding
  • Monthly reports & meetings
  • Dedicated web support

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Frequently Asked Questions

How much can I use on the free plan?
You get 10 free checks without registration. Sign up for a free account and your 10 checks reset every month, plus you get a dashboard with check history and score trends. You can view your SEO score (out of 100), domain power score, and Core Web Vitals (LCP, CLS, INP).
How is the SEO score calculated?
Scores are out of 100 across 4 categories: Structured Data (40pts) for JSON-LD, Schema.org, and Rich Results eligibility. Basic SEO (30pts) for title, meta, OGP, etc. Content (20pts) for content length, image alt, internal links, etc. Technical SEO (10pts) for HTTPS, mobile-friendly, speed, etc.
How do I use Keyword Planner, SEO_CHECK, and Search Console together?
Each tool serves a different phase of SEO improvement. (1) Use Google Keyword Planner to research search volume and competition and choose target keywords. (2) Use SEO_CHECK to verify page optimization across 45+ items including structured data, meta tags, and technical SEO. (3) After publishing, use Google Search Console to measure search queries, impressions, clicks, and ranking positions. This cycle of keyword research → page optimization → performance measurement continuously improves organic traffic.
How does the competitor comparison work?
In the SEO check results, find the "Competitor Comparison" section and enter competitor URLs to compare scores side-by-side. Basic plan supports 3 sites, Pro plan supports 6 sites.
What is improvement code generation?
Based on your SEO check results, this feature auto-generates ready-to-use HTML code including JSON-LD structured data and meta tags. Available on Basic and Pro plans.
Is chat support available?
Yes, click the chat icon in the bottom-right corner anytime. We can help with usage, pricing, and SEO terminology. Available in Japanese and English.

Features included in all plans

Structured data diagnosis
Basic SEO diagnosis
Content analysis
Technical SEO check
Domain power
Improvement advice
Responsive design
SSL encryption