Best SEO Testing Software in 2026
Updated
In short: Semrush is ranked #1 of 21 as of 3 October 2026, ahead of MetaMonster and ovoSEO. The best-ranked option with a free plan is ovoSEO. The lowest first paid tier on this page is ovoSEO at €9.99/mo.
21 SEO testing software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Experiment method | |
|---|---|---|---|---|---|---|---|---|
| 1 | Semrush | 7.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 2 |  MetaMonster | 7.2 | RecognisedAPIDocumented | $149/mo | Yes | 149 /mo | — | View |
| 3 | ovoSEO | 7.2 | RecognisedAPIDocumented | €9.99/mo | Yes | — | mixed | View |
| 4 | Statsig | 7.2 | RecognisedAPIDocumented | $150/mo | Yes | 150 /mo | — | View |
| 5 | Botify | 6.7 | RecognisedAPIDocumented | — | — | — | — | View |
| 6 | seoClarity | 6.6 | RecognisedAPIDocumented | — | No | 2,500 /mo | — | View |
| 7 | Sitechecker | 6.5 | RecognisedAPIDocumented | — | No | — | — | View |
| 8 |  Optux AI | 5.9 | RecognisedAPIDocumented | $39/mo | Yes | 39 /mo | mixed | View |
| 9 |  Rankerli | 5.8 | RecognisedAPIDocumented | $29/mo | Yes | 29 /mo | mixed | View |
| 10 |  SEO A/B Tester | 5.8 | RecognisedAPIDocumented | Free | Yes | — | time_based | View |
| 11 | SERP Split | 5.4 | RecognisedAPIDocumented | — | Yes | — | holdout | View |
| 12 | SEO Scout | 5.3 | RecognisedAPIDocumented | $49/mo | No | 49 /mo | — | View |
| 13 |  SEOTesting | 5.3 | RecognisedAPIDocumented | — | No | — | mixed | View |
| 14 | RankNest | 5.0 | RecognisedAPIDocumented | — | No | 50 /mo | time_based | View |
| 15 | SearchPilot | 5.0 | RecognisedAPIDocumented | — | No | — | split_url | View |
| 16 | Lumenlab | 4.9 | RecognisedAPIDocumented | — | No | — | split_url | View |
| 17 |  RankGear | 4.9 | RecognisedAPIDocumented | — | — | — | — | View |
| 18 | RankLooper | 4.9 | RecognisedAPIDocumented | — | No | — | — | View |
| 19 | Semust API | 4.9 | RecognisedAPIDocumented | — | Yes | 19 /mo | time_based | View |
| 20 | seojq | 4.9 | RecognisedAPIDocumented | — | No | — | — | View |
| 21 | SERPclimber | 4.9 | RecognisedAPIDocumented | — | No | 119 /mo | time_based | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which SEO testing software is ranked first on Inferse?
Semrush is ranked #1 of 21 with a score of 7.4. MetaMonster is second and ovoSEO third.
How many of these have a free plan?
5 of the 21 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, ovoSEO has the lowest first paid tier we found: €9.99/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.