Semrush vs Ahrefs
Semrush and Ahrefs compete in Marketing and SEO. We show the editorial position of each and the published criteria — AI Rankings never crowns a paid “winner” and never reorders for sponsorship.
Position in the Marketing and SEO ranking
Position comes only from the ranking criteria (rule R1). When there's an affiliate link, it's labeled and never changes the order (R5).
Side by side
| Criterion | Semrush | Ahrefs |
|---|---|---|
| Ranking position | #1 | #2 |
| Free plan | Yes | Yes |
| Starting price | US$ 139/mo | US$ 29/mo |
| Speaks Portuguese? | Yes | Yes |
What we verified
Semrush
Semrush
- Best for
- Teams that need keyword research and competitor analysis based on search data.
Verified on October 22, 2026 · official site
- On the free plan
- Free plan at US$0/month, no credit card, with 1 demo project and 10 reports per day; paid plans have a 7-day free trial.
Verified on October 22, 2026 · official site
- Speaks Portuguese?
- Yes
Verified on October 22, 2026 · official site
- Why it's ranked here
- Leads thanks to its own search database (29 billion keywords, 142 geographic databases), a Portuguese site, a free plan and published monthly prices; the entry paid plan, at US$139/month, is the most expensive in the group.
Verified on October 22, 2026 · official site
Ahrefs
Ahrefs
- Best for
- Teams that need keyword research, competitor analysis and technical audits based on a proprietary web index.
Verified on October 22, 2026 · official site
- On the free plan
- Ahrefs Free (formerly Webmaster Tools), at no cost for verified sites: Web Analytics, Site Audit with 5,000 crawl credits per project per month, Site Explorer with up to 1,000 visible backlinks and keywords, and 1 document per month in AI Content Helper.
Verified on October 22, 2026 · official site
- Speaks Portuguese?
- Yes
Verified on October 22, 2026 · official site
- Why it's ranked here
- It has its own search database (41.9 billion keywords, 217+ countries and locations), a Portuguese site, a free plan for verified sites and published monthly prices from US$29; it ranks behind Semrush because the free plan only analyzes your own sites and the AI content kit hasn't launched yet.
Verified on October 22, 2026 · official site
How we compare
Both are judged by the same Marketing and SEO criteria:
Real gains in SEO and content marketing (keyword research, page optimization, ad and campaign creation), proprietary search data, support for Portuguese and the Brazilian market, a free plan or trial and pricing transparency.
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