SEODevil vs Ahrefs Site Audit
Ahrefs is an all-in-one SEO suite with a huge backlink and keyword index; Site Audit is one part of it. SEODevil focuses only on finding and fixing technical issues on your pages.
If you need backlink data, keyword research and rank tracking, Ahrefs is in a different league and SEODevil doesn't try to compete. If what you need is a technical audit with fixes written and applied to your site, SEODevil does that from free, compared with Ahrefs' paid plans from $129 a month.
Side-by-side comparison
| Feature | SEODevil | Ahrefs |
|---|---|---|
| Type | Web app, nothing to install | Web app (all-in-one SEO suite) |
| Free version | Yes, no card needed | Yes, Ahrefs Free for sites you verify, with limited data |
| Paid price | Free; Pro $29/month; Agency $99/month | Starter $29/month; Lite $129/month; Standard $249/month |
| Crawl scope | One page per audit; monitoring covers up to 25 URLs on paid plans | Whole site; Lite includes 100,000 crawl credits |
| JavaScript rendering | Yes, renders with headless Chrome when a page needs it | Yes |
| Prioritized action plan | Every issue scored by severity and turned into a task list | Health score and issues grouped by importance |
| Fix code for each issue | AI writes the fix for each issue, ready to paste (5 free, unlimited on paid) | How-to-fix guidance for each issue type |
| Apply fixes to your site | Writes title, meta description and image alt text to WordPress, or opens a GitHub pull request (Pro) | Patches: titles and meta descriptions, applied by a JavaScript snippet on your site |
| Ongoing monitoring | Homepage daily on Free; 25 URLs hourly on paid, with email and Slack alerts | Scheduled site audits |
| AI search visibility | Tracks your prompts in Claude with web search, weekly | Brand Radar AI, an add-on from $199/month |
| Backlinks and keyword research | No | Yes, one of the largest indexes available |
Ahrefs details are from its website in October 2026. Prices and features change, so check their site for the latest.
Where Ahrefs is stronger
- Backlink index, keyword research, rank tracking and competitor research, none of which SEODevil offers.
- Site Audit crawls whole sites in the cloud, not just your key pages.
- Broad AI brand tracking across several assistants with the Brand Radar add-on.
- A mature product with a large team, extensive guides and integrations.
Where SEODevil is stronger
- A free plan with full audits, and paid plans from $29 a month.
- Fixes are written into WordPress itself (or committed through a GitHub pull request), so they are in the HTML every crawler receives, not added by JavaScript when the page loads.
- Covers image alt text as well as titles and meta descriptions.
- Every issue comes with fix code written for your page, whatever your platform.
- Measures the effect of each fix with your Search Console data.
- Checks AI crawler access at the firewall and CDN level, not just in robots.txt.
Which one should you choose?
Choose Ahrefs if SEO is your job and you need backlink, keyword and competitor data alongside technical audits.
Choose SEODevil if you mainly need your site's technical issues found and fixed, and Ahrefs' research tools would go unused.
The free plan runs full audits with no card needed.
Frequently asked questions
Is there a cheaper alternative to Ahrefs Site Audit?
Yes. If you only use Ahrefs for Site Audit, SEODevil covers technical checks on your key pages for free, and adds fix code and automatic fixes for WordPress and GitHub from $29 a month. You lose Ahrefs' backlink and keyword data.
How is SEODevil's auto-fix different from Ahrefs Patches?
Ahrefs Patches change titles and meta descriptions with a JavaScript snippet that runs when the page loads. SEODevil writes the change into WordPress through its REST API, or opens a pull request in your GitHub repository, so the fix is in the page's HTML. Crawlers that don't run JavaScript, including most AI bots, see the fixed version.
Does SEODevil have backlink data?
No. SEODevil is a technical audit and fixing tool. For backlinks and keyword research, a suite like Ahrefs or Semrush is the right choice.
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