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OnCrawl vs Semrush: Which is Better in 2026?

Choosing between OnCrawl and Semrush comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: Semrush wins this matchup. Our overall SEO Tools pick is Writesonic Chat. Our free SEO Tools pick is nopCommerce. Pick OnCrawl if you need its specific feature set.

··Methodology
Editor reviewed0 verified reviews comparedPricing checked Sep 2026

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

OnCrawl

Industry-leading technical SEO data and AI-powered insights for competitive websites.

Best for you if:

  • You want specifically designed for large and complex websites
  • You want offers AI bot monitoring, crucial for the evolving search landscape

Semrush

Online visibility management platform

Best for you if:

  • You want comprehensive toolkit
  • You want great for PPC
At a Glance
OnCrawlOnCrawl
SemrushSemrush
Starts at
Custom
$139.95/moPro
Best For
SEO ToolsSEO Tools
Rating
4.5/54.5/5
Free plan
No No

Choose OnCrawl or Semrush?

OnCrawl

Choose OnCrawl if

Industry-leading technical SEO data and AI-powered insights for competitive websites.

  • You want specifically designed for large and complex websites
  • You want offers AI bot monitoring, crucial for the evolving search landscape
Semrush

Choose Semrush if

Online visibility management platform

  • You want comprehensive toolkit
  • You want great for PPC
FeatureOnCrawlSemrush
Pricing ModelPaidPaid
User Rating
4.5/5
22 reviews
4.5/5
6,361 reviews
Categories
SEO ToolsWeb Analytics
SEO ToolsMarketing

In-Depth Analysis

OnCrawlOnCrawl

Industry-leading technical SEO data and AI-powered insights for competitive websites.

Starts at Custom

Watch out

Potential high minimum spend

Strengths

  • +Specifically designed for large and complex websites.
  • +Offers AI bot monitoring, crucial for the evolving search landscape.
  • +'Lenses' feature simplifies complex SEO analysis into actionable insights.
  • +Provides robust data segmentation and historical data for in-depth analysis.
  • +Scalable and integrates well with other tools via API.

Weaknesses

  • -No free tier mentioned, suggesting it's a paid solution.
  • -May have a learning curve due to its comprehensive features.
  • -Pricing information is not readily available on the provided pages.

Key features

AI bot monitoring (detects OpenAI, Claude, Mistral, Perplexity hits)Oncrawl Lenses (guided analytical journeys for specific SEO challenges)Content Lens (AI-powered content quality evaluation and suggestions)AI Search Lens (measures AI search visibility and identifies impact factors)Crawl Discovery Lens (maps SEO funnel and highlights structural issues)Sanity Check Lens (monitors critical pages for technical errors)

SemrushSemrush

Online visibility management platform

Starts at $139.95/mo
Good value

Semrush is the most comprehensive all-in-one SEO and digital marketing platform, and its pricing reflects the breadth.

Watch out

Extra user seats are expensive: Pro allows 1 user ($45/additional), Guru 1 user ($80/additional), Business 1 user ($100/additional). A 3-person agency on Guru pays $249.95 + 2×$80 = $409.95/mo, 64% more than the sticker price

Strengths

  • +Comprehensive toolkit
  • +Great for PPC
  • +Content marketing features

Weaknesses

  • -Steep learning curve
  • -Can be overwhelming

Key features

SEO platformKeyword researchSite auditBacklinksCompetitor analysisContent marketing

Pricing: OnCrawl vs Semrush

PlanOnCrawlSemrush
Tier 1
Contact us
Basic
$139.95
Pro
Tier 2
Contact us
Core
$249.95
Guru
Tier 3N/A
$499.95
Business

Pricing verified from each vendor's public pricing page. Compare in detail on OnCrawl pricing and Semrush pricing.

Who Should Use What?

On a budget?

Both are paid. Compare plans on their websites.

Go with: Semrush

Want the highest-rated option?

OnCrawl: 4.5/5 (22 reviews). Semrush: 4.5/5 (6,361 reviews).

Go with: OnCrawl

Value user reviews?

OnCrawl: 22 reviews (4.5/5). Semrush: 6,361 reviews (4.5/5).

Go with: Semrush

3 Questions to Help You Decide

1

What's your budget?

Both are paid. Pricing won't help you decide here.

2

What's your use case?

Both are seo tools tools. Compare their specific features to decide.

3

How important are ratings?

Both are rated 4.5/5.

Key Takeaways

Semrush

  • Larger review base (6,361 reviews)
  • Our pick for this comparison

OnCrawl

  • Choose if you want industry-leading technical SEO data and AI-powered insights for competitive websites

The Bottom Line

Semrush wins this matchup. Our overall SEO Tools pick is Writesonic Chat. Our free SEO Tools pick is nopCommerce.

Frequently Asked Questions

Is OnCrawl or Semrush better?

Semrush is rated in our evaluation. Both are paid.

What are OnCrawl and Semrush used for?

OnCrawl: Industry-leading technical SEO data and AI-powered insights for competitive websites.. Semrush: Online visibility management platform.

What does OnCrawl cost vs Semrush?

OnCrawl is a paid tool. Semrush is a paid tool. Visit their websites for detailed pricing.

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