SEO Cheki Guide: Basic Usage and MECE Competitor Analysis for EC

WRITTEN BY

Risa Watanabe

Senior Consultant

Meets Consulting Inc.

To maximize EC site sales, strengthening organic traffic as a long-term asset is essential beyond just ad management. However, surprisingly few managers accurately understand how search engines evaluate their site or what competitors are doing. The invaluable free SEO analysis tool "SEO Cheki." This article covers basic SEO Cheki operations and MECE competitor analysis frameworks from a professional perspective.

1. What Is SEO Cheki? An Overview for EC Managers

SEO Cheki is a free, browser-based SEO diagnostic tool widely used in Japan for quick competitor analysis and keyword ranking checks. For EC managers new to SEO, it provides an accessible entry point for understanding site visibility metrics without requiring technical expertise.

The tool allows instant analysis of key SEO indicators including title tags, meta descriptions, h1 structure, indexed page count, and keyword rankings — making it invaluable for MECE-structured competitive benchmarking across marketplace and independent EC channels.

2. Basic Operations: Mastering the 4 Main Functions

The four main functions of SEO Cheki are: (1) Site SEO Check for basic on-page analysis, (2) Keyword Ranking Check to track positions for target terms, (3) Keyword Suggestion for related term discovery, and (4) Competition Comparison for benchmarking against competitors. Mastering all four provides a foundation for systematic SEO work.

• Site SEO Check: Check basic information including Title, Description, H1 tags, and outbound link counts.
• Ranking Check: Measures Google/Yahoo rankings for specific keywords.
• Keyword Frequency: Visualizes which words are most used within pages.
• DokoDokoJP Integration: Identifies company information from visitor IP addresses.

3. Steps for Competitor Analysis from a MECE Perspective

Applying MECE competitor analysis with SEO Cheki involves: first, identifying your top 3-5 competitors on target keywords; second, running SEO Cheki analysis on each; third, comparing title tag strategies, keyword density, and page count; fourth, identifying gaps between your site and top-performers. This systematic approach reveals actionable improvement opportunities.

1. Structure Analysis: Investigate competitor title structure and H1 tag usage.
2. Content Analysis: Identify "hidden keywords" competitors focus on from keyword frequency.
3. Authority Analysis: Compare backlink counts and domain operation history.

4. SEO Cheki Usage Cautions and Complementary Tools

While SEO Cheki is valuable for beginners, it has limitations: it does not provide detailed backlink quality analysis, historical ranking data, or page speed metrics. Complementary tools like Google Search Console (free), PageSpeed Insights (free), and Ahrefs or SEMrush (paid) fill these gaps. A mature SEO strategy uses SEO Cheki as one component in a broader toolkit.