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Comparison

All in One SEO - Best WordPress SEO Plugin vs Semrush

All in One SEO - Best WordPress SEO Plugin and Semrush both land on Depends.

All in One SEO - Best WordPress SEO Plugin versus Semrush
CompareAll in One SEO - Best WordPress SEO PluginSemrush
VerdictDependsDepends
Best forWordPress site ownersSEO agencies and consultants
Who it's not forNon-WordPress websitesHobby sites and side projects
PrivacyPatch-sensitive: repeated public CVEs since 2015, including a pre-4.1.0.2 RCE and a 2024 XSS.⁸One CSRF CVE in its WordPress Content Toolkit plugin; no platform breach reported, but scammers heavily impersonate Semrush.
Public sentimentThird-party roundups consistently place AIOSEO in the top handful of WordPress SEO plugins, usually beside Yoast and Rank Math.¹Reviewers consistently praise its data depth but split hard on whether the price and billing practices justify it.
Biggest gotchaVersions 4.0.0-4.1.5.2 had an authorization bypass . running old versions is genuinely risky⁷7-day money-back guarantee reportedly honored inconsistently; one user charged $21113

Pick All in One SEO - Best WordPress SEO Plugin when

  • WordPress site owners
  • SEO beginners wanting guided setup
  • Bloggers and small business sites
  • Non-technical teams on WordPress

When All in One SEO - Best WordPress SEO Plugin is not a fit

  • Non-WordPress websites
  • Security-sensitive orgs needing a clean CVE history
  • Teams that outgrew plugins and need Semrush/Ahrefs-class suites
  • Buyers unwilling to patch plugins promptly

Pick Semrush when

  • SEO agencies and consultants
  • In-house teams running SEO full-time
  • Brands tracking AI search visibility
  • Multi-site enterprises

When Semrush is not a fit

  • Hobby sites and side projects
  • Anyone needing only basic keyword lookups
  • Teams that will use two features max
  • Small businesses without dedicated SEO staff

Sources

  1. 13 Best SEO Plugin for WordPress: 2026 Rankingsoptinmonster.com
    review
  2. Top 7 SEO Plugins for WordPress in 2026 (Most Are Free)bitapps.pro
    review
  3. Yoast vs. Rank Math vs. All In One SEO4goodhosting.com
    review
  4. Rank Math vs AIOSEO: Best Free SEO Plugin to Start With?pickupwp.com
    review
  5. 11 Best WordPress SEO Plugins & Tools to Outrankwpmailsmtp.com
    review
  6. Yoast SEO Plugin vs All In One SEO Packacmethemes.com
    review
  7. All in One SEO 4.0.0-4.1.5.2 Authorization Bypasswordfence.com
    security
  8. WordPress All in One SEO Pack Plugin < 4.1.0.2 RCEpentest-tools.com
    security
  9. CVE-2024-3554 Detailnvd.nist.gov
    security
  10. AIOSEO official siteaioseo.com
    official
  11. Semrush Reviews 2026: G2, Trustpilot, Capterra, Pricingpiperocket.digital
    review
  12. Semrush Review (2026): We Tested It on Three Real Sitesgeotoolbox.ai
    review
  13. I DO NOT recommend Semrush . money-back guarantee complaintreddit.com
    review
  14. Semrush New Prices from 139 to 199reddit.com
    review
  15. Semrush Pricing 2026: New Plans & Cost Breakdowndemandsage.com
    official
  16. Semrush Pricing: Does It Make Sense in 2026?explodingtopics.com
    official