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It's a split decision.
Choose Screaming Frog SEO Spider for low-cost technical crawling: its free tier caps crawls at 500 URLs, and the paid licence is $199 yearly per user. Choose Semrush if you need a wider SEO and AI-search suite, including keyword research, backlink analysis, rank tracking and AI visibility. Its free plan is limited to one demo project and ten reports daily; paid annual billing starts at $117.33/month. Neither is a like-for-like replacement: compare crawl needs against broader workflow and seat costs.
01Side by side
| Screaming Frog SEO Spider | Semrush | |
|---|---|---|
| Starting price | $16.58/month, billed annually ($199/year) | $117.33/month, billed annually |
| Free plan | Free; 500 URLs per crawl | Free; one demo project, 10 reports daily |
| Best for | Technical SEO audits and website crawling | Broader SEO and AI-search visibility work |
| Core strength | Technical SEO crawling and audits | SEO suite plus AI visibility tracking |
| Learning curve | Review ease-of-use score: 6/10 | Review ease-of-use score: 7/10 |
| Integrations/data | Crawler; additional integrations and data not specified | 29B keywords, 43T links, MCP connector |
| Team/seat costs | $199/year per user; bulk discounts listed | Additional users start at $45/month |
| Support | Free technical support listed; review score 7/10 | Help Center/basic onboarding; review score 3.8/10 |
Screaming Frog SEO Spider Choose Screaming Frog SEO Spider if
- Choose Screaming Frog SEO Spider if you need technical crawl audits.
- Choose Screaming Frog SEO Spider if 500 free URLs cover your needs.
- Choose Screaming Frog SEO Spider if lower per-user annual pricing matters.
Semrush Choose Semrush if
- Choose Semrush if you need keyword, backlink and rank-tracking tools.
- Choose Semrush if AI visibility tracking is part of your workflow.
- Choose Semrush if you need its MCP connector and broader SEO suite.
02Pricing compared
Screaming Frog is cheaper if you mainly need technical crawling. Its free version is limited to 500 URLs. The paid licence costs $199 per user per year, equivalent to $16.58 per month when billed annually; the pricing information lists no monthly billing option. Each user needs a separate licence.
Semrush’s free plan allows one demo project and 10 reports per day across its vital tools. Its SEO plan starts at $117.33 per month with annual billing, or $139 month to month, and includes five websites and 500 daily tracked keywords. The broader Starter plan is $165.17 per month annually. Additional users start at $45 per month, so seat costs can change the comparison. These are different kinds of spend: a crawler licence versus a multi-tool subscription.
03Features and depth
Screaming Frog SEO Spider is focused on crawling websites for technical SEO audits. The free version includes core crawling and audit features, while the paid licence removes the stated URL cap and adds advanced features; the pricing page does not specify exactly which. That makes it a focused option when the job is crawling and auditing, rather than managing a broader SEO program.
Semrush covers keyword research, competitor and backlink analysis, rank tracking, content optimization, local SEO, advertising and AI visibility tracking. Its homepage says its keyword database covers 29 billion keywords and its backlink database contains 43 trillion links. Plans also list Site Audit, with AI-ready Site Audit on Starter, and AI brand monitoring on eligible plans. Free access is much narrower than the paid suite: one demo project and 10 reports per day. Semrush offers substantially broader workflows, but it is not a like-for-like crawler replacement. Screaming Frog’s licensed feature details are not published on the vendor's site.
04Ease of use and learning curve
Screaming Frog is desktop software with Windows, Mac and Linux versions. Its narrower focus may make it the more direct fit when the task is a technical crawl; the free tier lets teams start with up to 500 URLs before buying a licence for larger crawls.
Semrush combines more workflows in one platform, from keyword and backlink research to rank tracking and AI visibility. That breadth can mean more tools and plan limits to understand before a switch. The free plan’s one demo project and 10 daily reports are a limited way to assess the suite, while paid plans specify website and keyword caps. We’d compare the workflows the team actually uses, not just headline starting prices.
Questions people ask
Can Semrush replace Screaming Frog SEO Spider?
Not as a like-for-like swap. Semrush includes Site Audit, but its plans also bundle keyword, backlink, rank-tracking and AI visibility tools. Screaming Frog is focused on website crawling and technical audits. Choose based on whether you need a crawler or a wider SEO platform.
Is Screaming Frog SEO Spider free?
Yes. The free version includes core crawling and audit features, but is limited to 500 URLs. The paid licence costs $199 per user per year and includes unlimited* URLs and advanced features, according to the pricing information. Each user needs an individual licence.
How much does Semrush cost compared with Screaming Frog?
Screaming Frog’s paid licence is $199 per user per year. Semrush SEO is $117.33 per month with annual billing, or $139 month to month. Semrush also has a free plan with one demo project and 10 reports per day; its paid plans cover a broader set of tools.
Which tool should I choose for technical SEO audits?
Choose Screaming Frog if your main need is crawling sites for technical audits and its 500-URL free limit is enough to start. Choose Semrush if you also need keyword research, backlink analysis, rank tracking or AI visibility features. Semrush’s Site Audit is part of its broader platform.