WebWriter Pro Inc. (Headquarters: Meguro-ku, Tokyo / CEO: Daichi Fujikura) announced the launch of its free SEO diagnostic tool 'S Check (Esu Chekku)' on July 13, 2026. By simply entering a URL, users can receive a comprehensive 80-item, 10-category assessment of whether their website has the foundational elements needed to rank highly on Google search.

S Check is WebWriter Pro's SEO diagnostic tool that analyzes both the 'essence' (content quality, E-E-A-T) and 'technical' (crawling, structured data) aspects of SEO across 80 items—completely free of charge. No registration or email input is required, enabling even non-specialists to objectively evaluate their site's current SEO foundation.

Service URL: https://webwriter-pro.co.jp/seo-check/

Three Key Features of 'S Check'

✅ Visualize SEO Foundation with Dual-Layer Scoring (Essence × Technical): Scored separately on essential factors such as search intent alignment, title, headings, content originality, and E-E-A-T, and technical factors including indexability, structured data, and crawl architecture.

✅ Quantify Improvement Priorities Across 80 Items and 10 Categories: Clear visibility into weaknesses via an overall grade (S/A/B/C/D/E) and individual item scores.

✅ Automatically Generate Actionable Improvement Code Examples: Provides ready-to-use sample code for robots.txt, XML sitemaps, structured data (JSON-LD), canonical tags, and meta descriptions.

Background of Service Development

"Rankings aren't improving, but I don't know what to fix."

Achieving high search engine rankings requires both high-quality content (Essence SEO) and a solid technical foundation that allows crawlers to properly access and understand the site (Technical SEO). However, many website operators struggle with not knowing where the root cause of poor performance lies. High-end SEO tools are often expensive and complex, while free tools tend to offer only fragmented feedback.

How S Check Differs from Existing SEO Tools

S Check's key differentiator is its dual-layer scoring system, which clearly identifies whether issues lie in 'essence' or 'technical' SEO—even for non-experts. The diagnosis is performed by retrieving publicly available HTML, ensuring that page content is never sent to external generative AI systems. WebWriter Pro has distilled its evaluation criteria—honed through producing over 30,000 SEO articles and SEO consulting—into 80 rule-based assessments that rely solely on publicly accessible information.

Item

Details

Target Users

Businesses and web managers seeking to reassess their site's SEO foundation

Service Format

Web-based tool (fully browser-based)

Diagnostic Items

10 categories × 8 items = 80 items (dual-layer evaluation: 5 Essence SEO axes + 5 Technical SEO axes)

Pricing

Free (no registration or email required)

Compatibility

All CMS platforms (WordPress, Webflow, Shopify, static sites, custom-built systems, etc.)

Launch Date

July 13, 2026

URL

https://webwriter-pro.co.jp/seo-check/

Three Key Features

1. Visualize SEO with Dual-Layer Scoring (Essence vs. Technical)

Separately score Essence SEO factors—such as search intent alignment, titles, headings, content originality, and E-E-A-T—and Technical SEO factors like indexability, structured data, and crawl design. In addition to an overall grade, the breakdown across 10 categories and 80 items clearly identifies areas needing improvement.

2. Enter URL Only – Completely Free (Industry Selection Optional)

Only a URL is required. No email registration or account creation needed. Optional industry selection enables industry-specific feedback. The tool retrieves up to 10 pages via internal links from the input URL, enabling site-level evaluation.

3. Automatically Generate Ready-to-Use Improvement Code Examples

For items flagged as weak, S Check provides sample code for robots.txt, XML sitemaps, structured data (JSON-LD), canonical tags, and meta descriptions—usable regardless of CMS.

Developer Comment

"SEO success doesn't come from just writing good content or just fixing technical issues. We developed S Check with the goal of helping even non-experts understand the current state of both pillars. We encourage everyone to enter their company's URL and discover where their growth potential lies. The diagnosis is completely free."

Daichi Fujikura, CEO, WebWriter Pro Inc.

Frequently Asked Questions (Q&A)

Q. Is the diagnosis free?

A. Yes. You can perform a free diagnosis simply by entering a URL. No registration or email input is required.

Q. What will I learn from this diagnosis?

A. You'll gain insights into improvement priorities related to search intent, titles, headings, content originality, E-E-A-T, internal linking, indexability, structured data, and other foundational elements for high rankings.

Q. How is this different from high-end SEO tools?

A. S Check is a free tool specialized in visualizing whether your SEO foundation is solid, using a dual-layer (essence vs. technical) assessment. Even without technical knowledge, you can identify where your challenges lie.

Q. Do you send page content to external generative AI?

A. No. We retrieve only publicly available HTML and perform automated evaluation using 80 fixed rules.

Q. Can I use it with WordPress or other specific CMS platforms?

A. Yes. It works with all CMS platforms, including WordPress, Webflow, Shopify, static sites, and custom PHP systems.

Future Outlook

WebWriter Pro Inc. will continue to support businesses in visualizing and improving their web marketing foundations by offering both 'S Check' and its sister tool, 'L Check'—a free diagnostic tool for AI search (generative AI) optimization (https://webwriter-pro.co.jp/llmo-check/). Together, they aim to empower companies in both traditional search engines and AI-driven search environments.

Company Overview

Item

Details

Company Name

WebWriter Pro Inc.

Representative

Daichi Fujikura

Headquarters

1-21-6 Komaba, Meguro-ku, Tokyo, Shibuya Matsumizaka Parksides Hills

Business Activities

SEO content creation, SEO and LLMO/AIO consulting, industry-specific media operations (over 30,000 articles delivered)

Corporate Website

https://webwriter-pro.co.jp/

Inquiries Regarding This Announcement

Daichi Fujikura, WebWriter Pro Inc.

Contact Form: https://webwriter-pro.co.jp/#contact

Email: [email protected]

Phone: 09052115914

FACT BOX

  • Source: PR TIMES
  • Category: New Product