Screaming Frog vs Sitebulb: which crawl tool should a small business use for SEO?

Sam White
11 hours ago
5 min read

Screaming Frog is the better choice for most small businesses that need raw crawling power at a low cost, while Sitebulb suits owners who want guided, visual audit reports without needing technical SEO knowledge. Both tools identify crawl errors, broken links, and on-page issues, but they approach reporting and usability very differently.

Key takeaways

Screaming Frog costs £259 per year for the paid licence; the free version crawls up to 500 URLs.
Sitebulb costs from £13.50 per month (Desktop Lite) and produces visual, prioritised audit reports with plain-English explanations.
Screaming Frog is faster and more configurable for technical SEO work; Sitebulb is easier to act on for non-specialists.
At Revolve, we find that small business owners using Sitebulb complete their first audit action within a single session — compared with two or more sessions when starting with Screaming Frog.
Neither tool replaces ongoing optimisation; pairing either with an AI SEO tool accelerates the fix-and-publish cycle significantly.

What is Screaming Frog?

Screaming Frog SEO Spider is a desktop-based website crawler developed by a UK agency of the same name. It was first released in 2010 and remains the industry standard for technical SEO auditing. The tool reads your site the way a search engine would, cataloguing every URL, status code, meta tag, heading, and internal link it encounters.

The free version is permanently available and handles sites of up to 500 URLs — sufficient for most small business websites. The paid licence, at £259 per year, removes that cap and unlocks JavaScript rendering, Google Analytics and Search Console integrations, and custom extraction via XPath.

What is Sitebulb?

Sitebulb is a UK-built desktop crawler launched in 2017, designed with a stronger focus on reporting and accessibility for non-technical users. Rather than outputting raw data tables, Sitebulb assigns severity scores to issues and groups them into prioritised hints with explanations of why each problem matters.

Pricing starts at £13.50 per month for the Desktop Lite plan, rising to £30 per month for Desktop Pro, which adds JavaScript crawling, site comparisons, and unlimited projects. A cloud version is also available from £99 per month, which is typically beyond the budget and need of a small business.

Screaming Frog vs Sitebulb: side-by-side comparison

Best for: Screaming Frog — Technical SEO practitioners; Sitebulb — Small business owners and beginners.

Cost: Screaming Frog — Free (500 URLs) / £259 per year; Sitebulb — From £13.50/month.

Reporting style: Screaming Frog — Raw data tables, exportable to CSV; Sitebulb — Visual dashboards with prioritised hints.

JavaScript rendering: Screaming Frog — Yes (paid); Sitebulb — Yes (Pro and above).

Plain-English guidance: Screaming Frog — Minimal; Sitebulb — Built in.

Learning curve: Screaming Frog — Steep; Sitebulb — Moderate.

Limitation: Screaming Frog — Requires technical knowledge to interpret; Sitebulb — Less granular control for power users.

How do the two tools handle reporting differently?

Screaming Frog outputs data as sortable spreadsheets. A row of 404 errors is easy to find, but understanding which errors matter most, and why, requires SEO knowledge. There is no built-in explanation of what to do next.

Sitebulb wraps the same underlying data in a hint system. Each issue is labelled Critical, Warning, or Advisory, and clicking through gives a plain-English explanation plus a link to further reading. For a small business owner auditing their own site, that context is the difference between acting and feeling stuck.

Which tool is faster for crawling?

Screaming Frog is consistently faster for raw crawl speed, particularly on larger sites. It is a lean application that prioritises throughput over presentation. For a 200-page small business website, the difference is negligible — both tools complete the crawl in under two minutes.

Speed only becomes a deciding factor if you are crawling sites above 5,000 URLs or running frequent scheduled crawls. At that scale, Screaming Frog's architecture gives it a measurable advantage.

How should a small business choose between them?

Start with the question: who will be reading the audit? If the answer is a business owner without a technical background, Sitebulb's guided reporting reduces the gap between audit and action. If the reports will be reviewed by an in-house SEO or a digital marketing agency, Screaming Frog's data depth and flexibility justify the format.

At Revolve, we use Screaming Frog for client audits where we interpret the data ourselves, and we recommend Sitebulb to small business owners who want to run their own audits monthly. Using either tool alongside an AEO Tool means technical fixes and content optimisation happen in parallel rather than sequentially.

How to run your first crawl with either tool

Download Screaming Frog or Sitebulb from their respective websites and install on a Windows or Mac desktop.
Enter your homepage URL and click Start (Screaming Frog) or Create Audit (Sitebulb).
Wait for the crawl to complete — typically under two minutes for a small business site.
In Screaming Frog, filter by Response Codes and sort by 4xx to locate broken pages first. In Sitebulb, open the Hints tab and sort by Critical severity.
Export a list of issues to a spreadsheet and assign each fix to a specific page and owner.
Re-crawl after fixes are implemented to confirm resolution.

Frequently Asked Questions

Is Screaming Frog free for small businesses?

Yes. The free version of Screaming Frog crawls up to 500 URLs permanently, with no trial period. Most small business websites fall within this limit, making it a zero-cost option for basic auditing.

Does Sitebulb work on Mac?

Yes. Sitebulb is available for both Windows and macOS. The cloud version runs in a browser and requires no local installation.

Which tool finds more SEO issues?

Both tools identify the same categories of issue — broken links, missing meta tags, duplicate content, slow pages, and redirect chains. Screaming Frog surfaces more granular data; Sitebulb surfaces more actionable context. The number of issues found is broadly equivalent.

Can I use both tools together?

Yes, and some agencies do. Screaming Frog is used for deep technical investigation and Sitebulb for client-facing reporting. For a small business auditing its own site, one tool is sufficient.

Do either of these tools check Google rankings?

No. Screaming Frog and Sitebulb are crawlers, not rank trackers. They analyse what is on your site, not where your pages appear in search results. Rank tracking requires a separate tool such as Ahrefs, SEMrush, or a dedicated rank tracker.

How often should a small business run a site crawl?

Once per month is a practical baseline for most small business websites. Running a crawl after any significant content update, migration, or site rebuild is also advisable to catch issues before they affect rankings.