Sitebulb vs SiteOne Crawler (2026): which should you pick?

Pick Sitebulb if

• Fits if you want each audit finding ranked by priority with an explanation of what to do
• Works for freelancers auditing sites under 10,000 URLs, from $180 a year on Lite

Look elsewhere if

• Tight if your site is big, as Lite stops at 10,000 URLs per audit and lacks scheduling, comparisons and several reports
• Pricey if you want it in the browser, as Sitebulb Cloud starts at $125 a month and needs at least 2 users
• Skip it if you need keyword research or rank tracking, as it only audits
• Watch out: desktop crawls depend on your computer; Pro's default cap is 500,000 URLs, and more users are from $11 a month each
• Watch out: there's no free plan after the 14-day trial, and paying by invoice or purchase order is for yearly plans only

Pick SiteOne Crawler if

• Fits if you want a whole-site audit report without paying for a licence
• Works for developers adding a site quality gate to a CI pipeline

Look elsewhere if

• Skip it if you want crawls run in the cloud, as it runs only on your own computer or server
• Watch out: single-page apps are crawled only in the optional browser mode, which renders them in Chromium
• Not for you if you want AI help with no bill elsewhere, as the assistant uses your own API key or a local model
• Tight if you want reports emailed, which needs an SMTP server of your own
• Watch out: the desktop app comes from the project's own links, not yet the Mac App Store or Microsoft Store

Sitebulb

• Lite caps each audit at 10,000 URLs and lacks scheduling, comparisons and several report types.
• Desktop crawls are limited by the computer: Pro's default cap is 500,000 URLs, raisable to 2 million.
• Sitebulb Cloud is priced separately, from $125 a month, and needs at least 2 users.
• Purchase order and invoice payment is only for yearly plans.

SiteOne Crawler

• It runs on your own computer or server; there is no hosted crawler, and emailed reports need your own SMTP server.
• The AI assistant uses your own API key or local model, so any LLM charges come from that provider.
• Pages built by JavaScript are crawled only in the optional browser mode, which renders them in Chromium.
• The desktop app is downloaded from the project's links; its page says it is not yet in the Mac App Store or Microsoft Store.

Sitebulb

Prioritized hints

Each audit flags issues against 100+ hints on Lite or 300+ on Pro, ranked by priority and explained in plain terms.

JavaScript crawling

Render JavaScript-heavy sites during a crawl on every plan, at no extra cost.

Audit comparison and scheduling

On Pro, compare audits to see what changed and schedule audits to run automatically, with auto-export to Google Sheets.

Crawl maps and reports

See site structure as visual crawl maps, and on Pro produce customized PDF reports for clients.

Pro-only checks

Pro adds performance and mobile, structured data, hreflang, spelling, accessibility and AMP reports.

MCP access

Connect audits to Claude, ChatGPT and other AI tools through Sitebulb's MCP server, included on every plan.

SiteOne Crawler

Audit report and quality score

Each crawl ends in a self-contained HTML report with a 0 to 10 score, weighted 25% security and 20% each for performance, SEO and accessibility.

Site-wide checks

Covers SEO and OpenGraph tags, headings, redirects and 404s, security headers, SSL/TLS certificates, caching headers, content types and DNS.

JavaScript rendering and screenshots

An optional browser mode renders each page in Chromium so single-page apps are crawled, and can capture every page as an image, GIF or MP4.

CI/CD quality gate

The --ci option fails a build when scores fall below set thresholds, with JUnit XML output and annotations for GitHub Actions.

Offline clone and Markdown export

Saves a static mirror of a whole site, assets included, or converts its pages to Markdown and an llms.txt file.

Optional AI assistant

With your own key for OpenAI, Anthropic or Gemini, or a local model, adds per-page SEO rewrites, spelling checks and a site summary.

Sitebulb

• Lite$18

  per month, billed monthly

  Desktop, 1 user, 10,000 URLs per audit, 100+ hints, JavaScript crawling, crawl maps and GA, GSC and Sheets integration.

• Pro$42

  per month, billed monthly

  Desktop price for 1 user; more users from $11 a month each. 500,000 URLs per audit, 300+ hints, scheduling, comparisons, PDF reports.

• Sitebulb Cloud$125

  per month and up, billed monthly

  Browser-based cloud crawling for 2+ users, no project limits, recurring crawls and Data Studio integration.

SiteOne Crawler

• Free$0

  The desktop app and command-line crawler, run on your own computer, with free hosted links for sharing reports.

Sitebulb

• Annual discount

  Save 15% with yearly plans

  Paid yearly, Lite is $180 a year and Pro $425 for 1 user, with extra users at $115.60 a year; Sitebulb Cloud starts at $1,500 a year.

SiteOne Crawler

No public discounts listed.