ProbonoSEO Basic

ProbonoSEO is a comprehensive SEO plugin designed and developed specifically for Japanese websites. Built from scratch with Japanese text structures and content patterns in mind. Why Choose ProbonoSEO

• Made in Japan - Developed by Japanese developers who understand Japanese SEO
• 70 Free Features - Comprehensive free feature set for essential SEO needs
• Japanese Optimized - Properly handles Japanese titles and meta descriptions

Free Features (70 features) Title Optimization (7 features) Basic title tag optimization, separator settings, site name append, title and H1 consistency check, category name append, duplicate title check, symbol and emoji warnings Meta Description (7 features) Basic meta description optimization, automatic content extraction, keyword extraction, summary generation, forbidden phrase check, character count check, duplicate check Canonical (5 features) Basic canonical settings, automatic canonical generation, trailing slash normalization, www normalization, parameter removal OGP / Twitter (12 features) Basic OGP output, OGP title settings, OGP description settings, automatic OGP image, default OGP image, Facebook App ID, LINE compatible OGP, thumbnail generation, image size detection, image alt check, Japanese URL support, basic Twitter card output Schema / Breadcrumbs (16 features) Basic schema output (Article, WebSite, WebPage, Organization, Person, BreadcrumbList, SearchAction, ImageObject), basic breadcrumb output (home, category, tag, post, page, archive, search, 404) Internal Links / Speed (12 features) Previous/next post links, same category links, child page links, related post links, tag relation logic, external link nofollow, category link format, lazy load images, lazy load iframes, CSS minification, JS minification, WordPress script optimization Article SEO (6 features) Heading structure check, image alt check, image count check, word count check, category match check, tag duplicate check Site Diagnosis (3 features) Title duplicate diagnosis, meta description duplicate diagnosis, speed diagnosis Other (2 features) Meta element cleanup, Google Search Console verification code Pro Version For advanced features including AI-powered SEO assistance, competitor analysis, rich snippets, and more, a separate Pro plugin is available at https://seo.prbn.org

1.5.5

• Added manual tab to admin dashboard

1.5.4

• Fixed JavaScript localization variable name mismatch
• Improved Gutenberg sidebar stability

1.5.3

• SVN release fix

1.5.2

• Removed Pro license check code
• WordPress.org guideline compliance

1.5.1

• Stable tag alignment fix
• Text Domain correction for WordPress.org compliance

1.5.0

• WordPress.org Plugin Check full compliance
• PHPCS coding standards compliance
• Security-related code improvements

1.4.2

• WordPress 6.9 compatibility
• Plugin Check compliance (code quality improvements)

1.0.0

• Initial release
• 70 free features for Japanese SEO optimization