
Choosing between Screaming Frog SEO Spider and Sitebulb is less about finding a universal winner than matching a crawler to the work you actually do. Both can inspect a site, render JavaScript, connect crawl data with other sources, and expose technical issues. They differ in licensing, crawl workflow, reporting, and the amount of interpretation each tool puts in front of you.
Updated October 24, 2026. Product limits and subscriptions can change, so check the vendor pages linked below before you buy or renew.
Short answer: choose Screaming Frog when you want a flexible desktop crawler, detailed exports, or command-line runs that you can build into your own process. Choose Sitebulb when guided hints, audit comparisons, presentation-ready reports, or managed recurring Cloud crawls are more useful than scripting every step. If your team is undecided, run the same small pilot in each tool and compare the findings you can verify and act on.
Screaming Frog vs Sitebulb at a glance
The products overlap, but the daily experience is different. Screaming Frog puts crawl configuration and data exploration at the center. Sitebulb combines crawl data with an audit interface that organizes findings into hints and reports. Those are workflow differences, not proof that one crawler is always more accurate or faster.
| Question | Screaming Frog SEO Spider | Sitebulb |
|---|---|---|
| How do you work? | Desktop application with detailed crawl controls, exports, and a command-line option. | Desktop audits with guided hints and comparisons; Cloud adds browser-based recurring crawls. |
| What is the entry point? | A free version is limited to 500 URLs. The paid license is listed at £199 per year on the UK pricing page. | Lite, Pro, and Cloud subscriptions. The pricing page and FAQ describe Lite’s URL allowance differently; verify your intended limit with Sitebulb. |
| What about large crawls? | The licensed crawler has no fixed URL cap, but desktop capacity depends on your hardware and settings. | The pricing page lists Pro at 500,000 URLs per audit and Cloud plans up to 10 million; plan availability and hardware still matter. |
| How do findings reach others? | Export and shape the data for your own analysis or reporting. | Use hints, audit comparisons, and report features to explain findings to a team or client. |
| How do you automate? | Run headless crawls through the documented command line and connect the output to your own scripts. | Cloud supports recurring crawls and integrations. Its MCP can inspect completed audits, but it is read-only and does not start or schedule crawls. |
These details describe current vendor documentation checked for this update, not a timed test of the products. For exact plan prices, tax treatment, seats, renewal terms, and regional currency, use the vendor checkout or ask the vendor. A feature page is not a substitute for confirming the plan that will be billed to your account.

What each crawler is designed to help you do
Screaming Frog: collect and shape crawl data
Screaming Frog is a desktop SEO spider for Windows, macOS, and Ubuntu. Its strength is control over the crawl and access to the resulting data. You can decide what to crawl, configure extraction, filter and segment URLs, connect supported data sources, and export the result for a separate analysis. The interface exposes many settings, which is valuable when you need them but gives a new user more concepts to learn.
A licensed installation can crawl beyond the free version’s 500-URL limit. “Unlimited” describes the license limit, not a promise that every computer can crawl an arbitrarily large site in one run. Available memory, crawl settings, JavaScript rendering, storage, response times, and the site itself all affect what is practical. For a large crawl, plan a test using representative sections and decide whether to store data in memory or a database mode based on the machine and job.
The command-line interface matters when a crawl must run without someone clicking through the desktop UI. Screaming Frog documents headless runs and options for saving and exporting crawls. That can support scheduled jobs or a deployment check, but the team still needs to manage the host, configuration, credentials, output parsing, failure thresholds, and alerting. CLI access does not automatically create a complete monitoring system.
For a technical SEO who already knows what to extract and how to validate it, the direct route from crawl configuration to a filtered dataset can be efficient. For a colleague who needs a concise explanation of why an issue matters, a spreadsheet or raw export may need an extra reporting step.
Sitebulb: organize an audit for interpretation
Sitebulb’s desktop product presents crawl findings through hints, reports, and audit comparisons. The hint system can help a person move from a long list of URLs to a set of issues worth reviewing. That is a presentation and prioritization aid; a hint is not a substitute for checking affected URLs, the underlying evidence, and the site’s purpose before changing anything.
The current pricing page describes Lite as including more than 100 hints and Pro as including more than 300, plus additional configuration, comparisons, and report features. The page lists Lite at 10,000 URLs per audit, while the official FAQ calls the Lite allowance 10,000 URLs “in total.” Those statements do not mean the same thing. Confirm the current cap and what counts toward it directly with Sitebulb before selecting Lite.
Sitebulb supports JavaScript crawling and connections to data such as Google Search Console and Google Analytics, subject to the plan and account setup. Sitebulb Cloud moves recurring audits into a hosted workflow and its FAQ describes Cloud crawls up to 10 million URLs. Its Cloud product also supports scheduled crawls and reporting integrations. Check the plan page for the current limits, available storage, and any feature prerequisites.
Sitebulb’s MCP connection adds a way to ask questions about completed audits. According to its support documentation, it can summarize audits, hints, URL details, and trends. It is read-only: it cannot launch, schedule, or modify a crawl. The documentation also limits the number of URLs it samples for a hint. Treat it as an analysis interface over existing crawl data, not as a crawl API.

Pricing and crawl limits to check before buying
Pricing changes, and vendor pages do not always display every subscription amount in a static page. The Screaming Frog UK pricing page currently lists £199 per year for a licensed user and describes a free tier capped at 500 URLs. Its FAQ explains that licenses are per user. If more than one person needs the paid features, account for the actual number of users rather than treating one license as a shared team seat.
Sitebulb offers monthly and yearly subscriptions, with the pricing page advertising a saving for annual billing. The FAQ currently describes Sitebulb Cloud as starting at £95 per month. Desktop plan prices and the Cloud amount that fits a particular project can depend on plan choice and subscription details; confirm the total with the checkout page. Do not use a starting price as a quote for a larger crawl, multiple seats, or a specific reporting requirement.
| Plan or product | Published allowance or price | What to verify |
|---|---|---|
| Screaming Frog free | Up to 500 URLs | Whether the free feature set covers your audit and integrations. |
| Screaming Frog paid | £199 per year on the UK page | Per-user licensing, renewal, currency, VAT, and the right number of seats. |
| Sitebulb Lite | Pricing page: 10,000 URLs per audit. FAQ: 10,000 URLs “in total.” | The official pages conflict on the cap; obtain written clarification if this determines the purchase. |
| Sitebulb Pro | Pricing page: 500,000 URLs per audit | Current subscription price, number of audits, seats, and any higher-cap arrangement. |
| Sitebulb Cloud | FAQ: starts at £95 per month; Cloud audits are described up to 10 million URLs | Which subscription supports your crawl volume, schedule, retention, integrations, and billing terms. |
A URL cap is only one dimension of capacity. A JavaScript crawl can consume more time and compute than an HTML-only crawl. URL discovery may also be affected by query parameters, faceted navigation, calendars, session paths, and infinite URL spaces. Before selecting a tier, document the number of URLs you expect to crawl, whether you need JavaScript, the crawl frequency, the number of users, and how long you need to keep reports.
JavaScript, speed, and data quality
Both products offer JavaScript rendering. That does not mean their output will be identical in every configuration or that one will always be quicker. A meaningful comparison needs the same start URLs, crawl scope, user agent, rendering mode, connection conditions, throttling, and stopping rules. Sitebulb’s crawler settings documentation notes controls such as threads, URL speed, response time, and rendering timeouts; those controls change how a crawl behaves.
There is no useful universal number such as “Tool A is twice as fast.” A large site may be constrained by its server response, a rendering queue, the local computer, a cloud plan, or URLs that keep generating crawl paths. A short HTML-only test on a small blog says little about a JavaScript-heavy store. If speed affects a purchase, run a pilot on a permitted environment and record the exact settings and scope.
Compare results by auditing a known sample: a few canonical pages, a redirect, a parameterized URL, a page that relies on JavaScript, and examples of the issue types that matter to your team. Inspect the source URLs and evidence for every difference. A tool may expose a useful pattern through a custom extraction or hint while the other requires a different configuration; that is a workflow result, not proof that its default output is wrong.
For repeatability, save the crawl configuration, software version, date, source list, and exclusions. If a page appears missing, determine whether it was undiscoverable, blocked, outside the crawl scope, or filtered from the report. If a tool flags a canonical or indexability issue, verify the live response and rendered page before editing the site. These checks matter more than a vendor-level speed claim.
Reporting, collaboration, and day-to-day use
Sitebulb is a natural fit when the outcome is an audit that another person must understand. Hints group findings and explain their context, while comparisons help show what changed between audits. Those features can reduce the amount of report assembly, but the reviewer still needs to separate critical problems from low-priority observations and tie each recommendation to a URL and a business consequence.
Screaming Frog fits teams that prefer to define their own reports. Its data can be filtered and exported into spreadsheets, databases, or internal dashboards. That flexibility is useful if a team already has a reporting template or needs bespoke extraction. It also means more responsibility for deciding which crawl fields matter, choosing thresholds, explaining the implications, and keeping scripts aligned with the current crawl configuration.
Neither a hint count nor a long export tells you whether an audit is useful. A good deliverable lists the affected URLs, the evidence, a reason to care, an owner, and a practical next step. For a client report, keep recommendations distinct from observations: “the crawler found this pattern” is a verifiable observation; “this change will increase rankings” is a forecast that needs evidence.
Automation: command line, recurring crawls, and MCP
Screaming Frog offers a documented command-line mode for headless crawling. It is the more direct choice when you need a crawl to run from your own script or build process and you are prepared to maintain the surrounding automation. A reliable pipeline needs more than a command: it needs access control, saved configuration, output validation, logs, resource planning, and a clear response when the crawl fails.
Sitebulb Cloud is aimed at recurring crawls managed through its hosted service. The vendor describes scheduling and integrations, so a team can receive audit data without keeping a desktop machine running for each recurring job. That can be enough for regular site monitoring when a hosted schedule matches the team’s needs. Confirm exactly which plan and integration support the workflow you want.
Sitebulb’s MCP is another capability, but it should not be confused with crawl automation. It can answer questions using completed audits and crawl data; its documented scope is read-only. It cannot initiate a crawl or change its settings. If your requirement is “start a crawl when code deploys, then fail the build when a rule is broken,” evaluate Screaming Frog’s CLI or another crawler with the needed execution API. If the requirement is “summarize last night’s completed audit,” Sitebulb’s MCP may be relevant.
Keep separate the trigger, crawler, analysis, and notification steps when mapping an automated workflow. Ask who starts the crawl, where it runs, how credentials are stored, where output is saved, which rules are checked, and who is notified. This prevents a report connector or read-only assistant from being mistaken for an end-to-end scheduler.
Compare the tools with a small, fair pilot
A short pilot is more useful than borrowing somebody else’s speed benchmark. Use a staging site or a crawl scope that you are authorized to inspect. Pick representative pages and establish the checks you care about before opening the tools, so the result is not simply whichever interface produces the more impressive dashboard.
- Choose the same start URL, allowed paths, exclusions, user agent, and crawl depth in both tools.
- Decide in advance whether the audit is HTML-only or uses JavaScript rendering.
- Use the same URL limit and a saved list of known pages and issue examples.
- Record crawl duration, settings, warnings, and resource use; do not generalize from one machine or site.
- Check whether each tool finds the known cases, and manually verify any disagreement against the page and response.
- Give one teammate the resulting report without a walkthrough and note which findings they can explain and prioritize accurately.
- Include setup, review, export, and report time in the comparison, not only the crawl timer.
Use the pilot to answer concrete questions: Can the tool crawl the needed sections? Can it render the pages you care about? Can a reviewer reproduce the findings? Can you export or share them in the required format? Does the recurring workflow need a desktop job, a hosted schedule, or a completed-audit query? The answers give you a local decision without pretending one site’s test is a universal performance result.
Estimate cost without inventing time savings
Start with the costs you can verify: subscription price, number of seats, renewal terms, hosting or machine requirements, and any data retention or integration needs. Then measure the time your own team spends configuring, checking, interpreting, and presenting an audit. Do not assume a hint or export will save a fixed number of hours; test that in the pilot.
A simple annual estimate is:
Annual tool and workflow cost = annual subscription fees + (audits per month × analyst hours per audit × loaded hourly cost × 12) + any required hosting or integration costs.
For an explicitly hypothetical illustration, suppose a team runs eight audits each month and a pilot shows that its preferred reporting workflow saves 20 minutes per audit. At an internal labor cost of £40 per hour, the modeled time difference would be 8 × one-third of an hour × £40 × 12, or £1,280 per year. This is arithmetic based on assumed inputs, not a claim that either product delivers those savings. Replace the assumptions with your observed pilot results before comparing that figure with a subscription.
Also account for the cost of the workflow the software does not perform. A cheap crawler may require scripting and report assembly; a guided audit may still require technical validation and a developer to implement changes. In a small team, setup and learning time may matter more than a modest subscription difference. In a recurring enterprise crawl, infrastructure, data retention, governance, and ownership can outweigh the desktop license.
Which tool should you choose?
Choose Screaming Frog when
- You want detailed crawl controls and direct access to datasets and exports.
- Your technical SEO team can build or maintain its own analysis and reporting.
- You need a command-line crawl to run on a host or in a deployment workflow.
- You want to start with a 500-URL free crawl before buying a license.
- Your team is comfortable sizing desktop resources and validating crawl settings.
Choose Sitebulb when
- Guided hints and audit comparisons help your team move from crawl output to review.
- You need a report interface that makes findings easier to discuss with a client or colleague.
- You want to evaluate hosted recurring crawls in Sitebulb Cloud.
- You prefer a managed audit workflow over maintaining a custom crawl pipeline.
- You have checked that the plan’s URL cap, seats, and price match your use case.
Use both only when each has a defined job
A team can use one crawler for scheduled or scripted collection and another for a specific reporting workflow, but a hybrid setup adds licenses, configuration, and reconciliation. Before keeping both, name the job each one does and verify that the second tool adds information or a useful handoff that the first cannot provide efficiently. “Best of both worlds” is not a cost case by itself.
If your main requirement is continuous monitoring across a very large site, compare the two products’ plans against dedicated hosted crawlers as well. Ask each vendor for a proposal based on your URL volume, JavaScript needs, crawl frequency, retention, and integrations. This article does not rank or price alternatives because their plans and terms need a separate current comparison.
Frequently asked questions
Is Screaming Frog free?
Yes. The free version is limited to 500 URLs. The UK pricing page lists the paid license at £199 per year; check the current vendor page for your region, renewal, and seat requirements.
Can both tools crawl JavaScript?
Both support JavaScript rendering. A JavaScript crawl can change the resources and time required, so compare them using the same rendering mode, scope, and representative pages.
Which crawler is faster?
There is no reliable universal winner. Site size, response time, crawl speed settings, rendering, storage, and machine or Cloud resources all affect duration. Measure the same authorized scope in a pilot.
What is the Sitebulb Lite URL limit?
The official pricing page says 10,000 URLs per audit, while the official FAQ says 10,000 URLs in total. Since the wording conflicts, confirm the cap directly with Sitebulb before relying on Lite for repeat audits.
Can Sitebulb’s MCP start a crawl?
No. Its documented MCP connection can query completed audits and their findings, but it is read-only and cannot run, schedule, or alter a crawl.
Can Screaming Frog run without the desktop interface?
Yes. Screaming Frog documents command-line and headless crawl options. You still need to configure the environment, manage credentials, save the output, and decide how to validate and act on it.
The practical choice
Screaming Frog is the clearer fit for teams that want crawl control, exports, and a command-line path they can operate themselves. Sitebulb is the clearer fit for guided audit review, comparisons, and a hosted recurring workflow. Price, scale, and speed depend on the plan and configuration, so verify them against your own scope rather than relying on old price tables or unrepeatable benchmarks.
Use the free Screaming Frog limit or Sitebulb’s trial to test representative pages, validate the issues manually, and show the resulting report to the person who will use it. Then choose the smallest plan that meets your measured requirements. That gives you a decision tied to evidence from your workflow rather than a generic winner label.
Official product documentation
- Screaming Frog SEO Spider pricing
- Screaming Frog general user guide and command line
- Sitebulb pricing and plan features
- Sitebulb official FAQ
- What the Sitebulb MCP can and cannot do
- Sitebulb crawler settings

Building websites since before Google existed. I’ve run SEO, growth, and content for startups across California — and I’ve watched every ‘revolutionary’ tactic eventually expire. What doesn’t expire: understanding systems, compounding effort, and thinking slower than everyone else.