Ahrefs Site Audit vs Oncrawl:Which is more popular?
In September 2026, Oncrawl had more branded searches than Ahrefs Site Audit among SEO website crawlers worldwide. Oncrawl had about 1,900 branded searches, while Ahrefs Site Audit had 1,000. Oncrawl made up 2.2% of all SEO website crawler searches we track, and Ahrefs Site Audit accounted for 1.2%. When we asked ChatGPT and Google AI Overviews about SEO website crawlers, Ahrefs Site Audit appeared in three of the five answers and Oncrawl in one. Ahrefs Site Audit was mentioned before Oncrawl in three out of four answers.
Who do people search for more?
Oncrawl, about 90% more searches than Ahrefs Site Audit
Who does AI mention more?
Ahrefs Site Audit, mentioned in 3 of 5 answers, Oncrawl in 1
Who does AI recommend more?
Ahrefs Site Audit, named ahead of Oncrawl in 3 of 4 answers
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Top SEO website crawlers in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Ahrefs Site Audit was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Oncrawl was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. Ahrefs Site Audit was listed before Oncrawl in three out of four answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Screaming Frog1st
Sitebulb2nd- Ahrefs Site Audit3rd
Lumar4th- Semrush Site Audit5th
- Oncrawl6th
JetOctopus7th
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Screaming Frog4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Sitebulb4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Semrush Site Audit3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Ahrefs Site Audit3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Lumar3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Oncrawl1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- JetOctopus1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about SEO website crawlers
5 answers
Asked ChatGPT
“Which SEO website crawler should I use?”
Asked ChatGPT
“What are the best SEO website crawlers?”
Asked ChatGPT
“What's the best SEO website crawler for a technical SEO audit?”
Searched Google, AI Overview
“seo crawler tool”
Searched Google, AI Overview
“website crawl tool”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Ahrefs Site Audit or Oncrawl more popular in search?
This chart shows how often people search Google for Ahrefs Site Audit and Oncrawl by name. Each line represents a brand's share of searches for all seven SEO website crawlers we track, month by month, from English-language searches worldwide.
Share of searches by month for Oncrawl, Ahrefs Site Audit. The figures are in the table below the chart.
View monthly share of searches table
| Month | Screaming Frog | Sitebulb | Semrush Site Audit | Oncrawl | Ahrefs Site Audit | JetOctopus | Lumar |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 85.2% | 7.6% | 1.8% | 2.8% | 1.5% | 0.83% | 0.22% |
| Nov 2025 | 86.1% | 7.7% | 1.5% | 2.2% | 1.5% | 0.83% | 0.15% |
| Dec 2025 | 87.2% | 6.4% | 2.2% | 2.2% | 1.2% | 0.69% | 0.08% |
| Jan 2026 | 87.1% | 6.4% | 2.2% | 2.2% | 1% | 0.84% | 0.15% |
| Feb 2026 | 85.8% | 6.3% | 2.8% | 2.8% | 1.5% | 0.68% | 0.17% |
| Mar 2026 | 85.8% | 5.1% | 4.2% | 2.3% | 1.8% | 0.68% | 0.13% |
| Apr 2026 | 84.1% | 6.2% | 5% | 2.1% | 1.8% | 0.67% | 0.12% |
| May 2026 | 82.3% | 6.1% | 7.3% | 1.8% | 1.8% | 0.65% | 0.15% |
| Jun 2026 | 83.8% | 6.1% | 6.1% | 1.8% | 1.5% | 0.66% | 0.12% |
| Jul 2026 | 80.3% | 5.9% | 8.7% | 1.7% | 2.6% | 0.64% | 0.12% |
| Aug 2026 | 84.3% | 5% | 7.5% | 1.5% | 1.1% | 0.54% | 0.11% |
| Sep 2026 | 87.2% | 5.2% | 3.4% | 2.2% | 1.2% | 0.69% | 0.12% |
How has the Ahrefs Site Audit and Oncrawl comparison changed over the last 12 months?
3 findings
- The lead changed hands 2 times in the 12 months ending September 2026: Ahrefs Site Audit took it in July 2026, Oncrawl took it in August 2026.
- Across the 12 months ending September 2026, Ahrefs Site Audit’s share of searches among SEO website crawlers worldwide moved from 1.5% to 1.2%, and its estimated monthly branded searches moved from 1.3K to 1K.
- Across the 12 months ending September 2026, Oncrawl’s share of searches among SEO website crawlers worldwide moved from 2.8% to 2.2%, and its estimated monthly branded searches moved from 2.4K to 1.9K.
How did search popularity change for SEO website crawlers worldwide in September 2026?
2 changes
In September 2026, Oncrawl gained share of searches among SEO website crawlers worldwide, from 1.5% to 2.2%.
Estimated monthly branded searches for Ahrefs Site Audit worldwide fell 23.1% over 12 measured months, from 1.3K to 1K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Ahrefs Site Audit’s and Oncrawl’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Ahrefs Site Audit
1 branded search term
- ahrefs site audit
Oncrawl
1 branded search term
- oncrawl
Other head-to-heads among SEO website crawlers
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