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- Best for
- SEO consultants and agencies who need prioritised technical audits they can explain to clients
- Starting price
- $18 per month (Lite)
- Free plan
- ✗ No
- Free trial
- ✓ Yes
Sitebulb is a website crawler for technical SEO audits. It crawls a site, renders JavaScript with a Chrome browser engine, checks for hundreds of technical issues, ranks them by priority and explains each one in plain language. You can run it as desktop software on Windows or Mac, or as Sitebulb Cloud in your browser.
Who is Sitebulb for?
Sitebulb is built for people who audit websites for a living: SEO consultants, freelancers, in-house SEO teams and digital agencies. Sitebulb Lite is aimed at website owners, startups and web agencies that audit less often.
What are Sitebulb's main features?
Discovery: crawling a site
Sitebulb crawls any site you point it at, including sites built on JavaScript frameworks, because it can render JavaScript during the crawl at no extra cost. Sitebulb Pro crawls up to 500,000 URLs per audit by default, and you can raise that to 2 million if your computer can cope. Sitebulb Cloud handles up to 10 million URLs per audit.
Prioritisation: Hints
Sitebulb calls its checks Hints. Pro checks more than 300 technical SEO issues, Lite more than 100. Each Hint gets a priority, so you can fix critical problems first and park minor ones. Pro adds reports that Lite leaves out, including performance and mobile friendliness, structured data, hreflang, accessibility, AMP and a spell checker.
Understanding and communication
Every Hint links to an explanation of what it means, why it is a problem and how to fix it. Crawl maps show the structure of a site visually. Pro can compare audits to show what changed, run audits on a schedule, produce customised PDF reports and export automatically to Google Sheets. All plans connect to Google Analytics, Google Search Console and Google Sheets.
AI tools through MCP
All plans now include MCP access, which lets you bring your crawl data into Claude, ChatGPT and other AI assistants and ask questions about an audit.
How much does Sitebulb cost?
Prices checked on 1 November 2026 on Sitebulb's pricing page, which shows US dollars by default and can switch to pounds or euros.
| Plan | Monthly | Yearly | Users | URLs per audit |
|---|---|---|---|---|
| Lite | $18 per month | $180 per year | 1 | 10,000 |
| Pro | $42 per month | $425 per year | 1 (more can be added) | 500,000 |
| Sitebulb Cloud | from $125 per month | from $1,500 per year | 2 or more | up to 10 million |
In pounds, Lite is £12.50 and Pro £30 per month; Cloud starts at £95 per month. The page says yearly plans save 15%. There is no free plan, but a 14-day free trial of Sitebulb Pro needs no credit card.
What do users say about Sitebulb?
Sitebulb is rated 4.9 out of 5 on Capterra UK from 25 reviews, with sub-scores of 4.8 for ease of use, 4.7 for value for money and 4.9 for customer service, and 4.5 out of 5 on G2 from 13 reviews, at the time of checking.
Capterra reviewers most often praise the prioritised Hints that explain why an issue matters and how to fix it, the data visualisations that make crawl problems easy to show clients, the ability to drill into the data and the training material. The criticisms are mostly about the desktop version: large JavaScript crawls use a lot of memory and processor power, so you need a powerful computer, some reviewers would rather not install software at all, and required updates come often. Sitebulb Cloud addresses the first two points, at a higher price.
When should you choose an alternative?
- You want a desktop crawler with a free version. Screaming Frog SEO Spider crawls up to 500 URLs for free.
- You want continuous monitoring rather than one-off audits. ContentKing, now Conductor Monitoring, tracks changes and issues around the clock.
- You want site audits inside an all-in-one SEO suite. Semrush, Ahrefs and Moz bundle a crawler with keyword and backlink research.
- You only need Google's own view of your site. Google Search Console is free.
For the process itself, read how to perform a technical SEO audit or browse all SEO tools.
Key features
- Prioritised Hints. Checks more than 300 technical SEO issues on Pro and ranks them by importance, so you know what to fix first.
- Built-in explanations. Every Hint comes with an explanation of what it means, why it matters and how to fix it, which you can reuse in client reports.
- JavaScript crawling. Renders JavaScript pages during the crawl at no extra cost, so sites built on JavaScript frameworks can be audited.
- Crawl maps and visualisations. Shows site structure and internal linking as visual maps and charts.
- Audit comparisons and scheduling. Pro and Cloud can run audits on a schedule and compare crawls to show what changed.
- Reports and exports. Customised PDF reports on Pro, plus Google Sheets integration on every plan.
- MCP access. Connects audit data to Claude, ChatGPT and other AI tools on every plan.
Sitebulb pricing
| Plan | Price | Notes |
|---|---|---|
| Lite (Desktop) | $18 per month billed monthly, or $180 per year billed yearly | 1 user and 10,000 URLs per audit; 100+ Hints, JavaScript crawling, crawl maps, Google Analytics, Search Console and Sheets integration. |
| Pro (Desktop) | $42 per month for 1 user billed monthly, or $425 per year billed yearly | 500,000 URLs per audit by default, 300+ Hints, scheduled audits, audit comparisons and custom PDF reports. Extra users cost more; 2 users are $53 per month. |
| Sitebulb Cloud | From $125 per month, or from $1,500 per year | Runs in the browser for 2 or more users, up to 10 million URLs per audit, no project limits, recurring crawls and Data Studio integration. |
Sitebulb FAQ
Does Sitebulb have a free trial?
Yes. Sitebulb offers a 14-day free trial equivalent to Sitebulb Pro, with no credit card and no up-front commitment. There is no free plan.
How much does Sitebulb cost?
On 1 November 2026 the pricing page, in US dollars, listed Lite at $18 per month or $180 per year and Pro at $42 per month or $425 per year for one user. Sitebulb Cloud starts at $125 per month. The page also shows pounds and euros.
What is the difference between Sitebulb Lite and Pro?
Lite is limited to 10,000 URLs per audit and leaves out reports such as performance, structured data, hreflang, accessibility, spell checking and scheduling. Pro crawls up to 500,000 URLs per audit by default.
Should I choose Sitebulb Desktop or Sitebulb Cloud?
Desktop runs on your own Windows or Mac computer, so its crawl size depends on your machine. Cloud runs in the browser, handles much larger sites and lets a team work from the same crawl data, but costs more.