Sitebulb vs Screaming Frog: two desktop crawlers

Pick Screaming Frog if you like building your own audit from a spreadsheet. It is fast, precise and unforgiving. You decide what matters and how to slice it.

Pick Sitebulb if you want explained issues with priorities and a crawl map. It points you at likely problems without you wiring every filter first.

Both run on your machine, so you can crawl local, staging and production. For one site, either is enough. Choose the style you will actually use weekly.

A desktop crawler fetches your pages like a search engine would. It follows links, records what it sees and lets you report on it offline. No data leaves your machine unless you send it.

This suits founders who ship their own changes. You crawl, you find broken links, thin titles or stray canonicals, then you fix your templates. Rerun and check the diff.

Screaming Frog is a desktop crawler for Windows, macOS and Linux. The free version crawls up to 500 URLs. The licence unlocks unlimited crawls, custom extraction, scheduling and API connections. It produces tables you interpret yourself.

You get a grid for internal pages, another for response codes, another for titles and so on. You use filters, exports and your own pivot tables to spot patterns.

If you like control, it shines. Example: export all 3xx with chain length, join to your redirects list, cut the loops, rerun. The tool stays out of the way.

Sitebulb is a desktop crawler for Windows and macOS, with a cloud version. It is known for explained audit hints with priorities and visual crawl maps. It tells you likely issues and why they matter, then links to the evidence.

You open a project and see audits grouped by topic, like indexability, internal links, titles and content. Each hint shows affected URLs. The crawl map helps you spot sections with poor linking.

If you want a guided start, it helps you act sooner. Example: fix duplicate titles from a list it flagged, add links from /guides to /pricing, rerun and see the hint drop in priority.

• Find broken links: crawl your domain, filter for 4xx and 5xx on internal outlinks, click through to the source pages and fix or remove them.
• Fix redirect chains: list 3xx targets with chain length, update links on source pages to the final URLs and reduce chains to one hop at most.
• Tidy titles and descriptions: find missing or too long titles and meta descriptions. Write a unique title under about 60 characters for each template.
• Check canonicals: list non-indexable pages with a canonical, and indexable pages pointing canonicals away. Ensure each indexable page self-canonicals unless you intend otherwise.
• Hunt orphan pages: export all crawled URLs, compare to your XML sitemap and your database of live URLs. Add internal links to orphans you want indexed.
• Verify sitemaps: fetch your XML sitemap, ensure it lists indexable URLs that return 200, and remove 3xx, 4xx and 5xx entries.

A fixed page looks like this: /pricing returns 200, has a clear title like Pricing and plans, self-canonicals, and at least three internal links from /guides/ pages.

Choose Screaming Frog if you enjoy data work and want the leanest tool. You will build your own saved filters and exports and get fast at it.

Choose Sitebulb if you prefer guided audits and visuals. You want priorities and explanations to triage work without setting up every report yourself.

If you will crawl once a quarter, pick the tool that removes friction. If you will crawl weekly, pick the tool that lets you customise deeply.

1. 1

   Triage thin pages from a crawl

   Crawl your site. Filter pages under 200 words or with missing H1. In Screaming Frog, export and map to templates. In Sitebulb, open the content hints. Fix the template first, not each URL.

2. 2

   Close redirect loops after a migration

   Crawl old and new domains. In Screaming Frog, list 3xx with loops and final targets. In Sitebulb, review redirect hints. Update your redirects file and internal links. Re-crawl to confirm 200s.

3. 3

   Find sections that need links

   Open internal link data. In Screaming Frog, sort by inlinks and depth, then pivot by directory like /guides/. In Sitebulb, check crawl map clusters and internal linking hints. Add links from hubs.

4. 4

   Validate canonicals on parameters

   Crawl with parameters allowed. In Screaming Frog, filter indexable pages with canonicals pointing elsewhere. In Sitebulb, check canonicalisation hints. Ensure indexable versions self-canonical.

After you fix, rerun the same crawl with the same settings. Save your exports. Compare runs to see if counts drop: 4xx to zero, duplicate titles to zero, chains to one hop.

• Your machine sets the ceiling. Big crawls need CPU, RAM and disk. Close other apps and cap threads if it thrashes.
• Private areas and staging may need auth. Test with a narrow crawl first so you do not index staging by mistake.
• Crawlers fetch fast by default. On a small server, lower concurrency and add a crawl delay to avoid 5xx errors that are your fault, not bugs.
• JavaScript-heavy pages can be slower to crawl than static pages. Budget time for it or crawl paths first, then deep pages overnight.
• Save your crawl files with dates. You will need them to prove you fixed something later.

If you want a cloud crawler with a wider suite, look at Ahrefs Site Audit or Semrush Site Audit. Both sit inside broad toolsets alongside keyword and backlink data.

SE Ranking also has site audit alongside rank tracking and research. Ubersuggest aims at beginners and includes a site audit and keyword ideas with a free tier.

For page speed testing, use Lighthouse in Chrome DevTools or PageSpeed Insights. GTmetrix and WebPageTest give waterfalls and more test locations if you need them.

Google Search Console covers pre-click: queries, pages, impressions, clicks, positions, indexing and sitemaps. Google Analytics 4 covers post-click: sessions, pages, events and conversions. They never reconcile exactly.

If you are hands-on and happy in tables, choose Screaming Frog. It gets you to the raw data fastest and lets you customise deeply as you learn your site’s quirks.

If you want guided priorities and a crawl map, choose Sitebulb. It reduces setup and helps you explain issues to a teammate who does not live in spreadsheets.

You will not outgrow either on one site. The right choice is the one you will run every week and act on without delay.