TL;DR: Pick Ahrefs if backlinks, keyword research, and clean SEO data are the job — it starts cheaper at $29 and its Lite plan undercuts Semrush. Pick Semrush if you need the wider marketing suite: SEO plus PPC, content, and social tools in one login, starting at $139.95/month. For pure SEO depth, Ahrefs; for all-in-one marketing, Semrush.
Ahrefs vs Semrush at a glance
| Feature | Ahrefs | Semrush | Edge |
|---|---|---|---|
| Entry paid plan | Starter $29/mo; Lite $129/mo ($108/mo billed annually) | Pro $139.95/mo ($117.33/mo billed annually) | Ahrefs |
| Mid plan | Standard $249/mo ($208/mo billed annually) | Guru $249.95/mo ($208.33/mo billed annually) | Tie on price |
| Top core plan | Advanced $449/mo; Enterprise $1,499/mo | Business $499.95/mo ($416.66/mo billed annually) | — |
| Free option | Free account for verified site owners (limited own-site data) | Limited free account, ~10 searches/day; 7-day trial on paid plans | Semrush for trying |
| Projects (entry full plan) | Lite: 5 projects, 750 tracked keywords | Pro: 5 projects, 500 tracked keywords | Ahrefs |
| Backlink analysis | Site Explorer — widely regarded as the category benchmark | Strong backlink audit and analytics, broader suite around it | Ahrefs |
| Beyond SEO | SEO-focused; AI visibility via Brand Radar add-ons | PPC, social, content marketing toolkits and add-ons | Semrush |
| Content tools | Content Explorer; Content Kit add-on from $99/mo | Content Marketing Toolkit on Guru and above | Semrush |
Prices checked October 2026. Research-based comparison; no hands-on testing claims.
Where does Ahrefs win?
Ahrefs stays focused. Site Explorer, Keywords Explorer, Site Audit, and Rank Tracker do one job — understand search demand, links, and competitors — with deep historical data as you move up tiers (6 months on Lite, 2 years on Standard, 5 years on Advanced). Watch the meter: Starter and Lite use credits, extra seats cost extra, and add-ons like Brand Radar and Content Kit can push a $129 Lite bill much higher. Annual billing saves about 17%.
Where does Semrush win?
Semrush is a suite, not a single tool. Pro covers keyword research, competitor analysis, position tracking, backlinks, and site audit for 5 projects. Guru at $249.95 adds what content teams actually need: historical data, multi-location tracking, and the Content Marketing Toolkit. Business adds API access and share-of-voice reporting. The trade-off is complexity and add-on pricing — AI Visibility and other toolkits are often separate, and extra users cost $45–$100/month depending on tier.
Which should you pick?
Pick Ahrefs if: you are a freelancer, affiliate publisher, or agency whose deliverable is rankings and links. Start on Lite; move to Standard for unlimited credits and Content Explorer.
Pick Semrush if: the same team handles SEO, paid search, and content, and you want one vendor and one reporting habit. Most such teams land on Guru, not Pro.
Pick neither yet if: you run one small site. Use the free tiers first — Ahrefs Free for your own verified site, Semrush free for a handful of daily checks — until limits genuinely block weekly work.
Frequently asked questions
Is Ahrefs cheaper than Semrush?
At entry, yes: Ahrefs Starter is $29/month and Lite is $129/month, versus Semrush Pro at $139.95/month. Mid-tiers are almost identical at about $249/month.
Does Ahrefs have a free plan?
Yes, a free account for verified website owners with limited access to their own site’s data. There is no free trial of the full paid plans.
Does Semrush have a free trial?
Yes, Semrush commonly offers a 7-day trial on paid plans, plus a permanent limited free account.
Which is better for backlinks?
Ahrefs is the usual pick for backlink depth and Site Explorer workflows. Semrush is capable, but buyers choose it for the broader marketing suite, not links alone.