Oncrawl vs Sitebulb

Oncrawl and Sitebulb both target technical SEO crawling, but Oncrawl is built around enterprise-scale, unsampled crawl-plus-log-file analysis with an AI…

Best for Oncrawl: Large, complex sites that need server log file analysis alongside crawling, want unsampled (100% data) processing, and are comfortable going through a demo/quote process rather than a self-serve trial.
Best for Sitebulb: Teams that want to test a fully-featured product for 14 days without a credit card, need a one-time desktop license option instead of a subscription, or want free JavaScript rendering bundled in by default.

At a Glance

 OncrawlSitebulb
Primary categorySEOSEO
RatingNot documentedNot documented
Pricing modelCustomSubscription (desktop license tiers plus cloud crawl tiers)
Starting priceCustom (contact sales)$13.50/month (billed annually, Desktop Lite)
Free planNot documentedNot documented
Free trialNot documentedYes
PlatformsWebWeb
Team collaborationNot documentedNot documented
AI featuresYesNot documented
Public APIYesNot documented

Key Differences

Trial and evaluation model

Oncrawl: Oncrawl requires booking a demo; no free trial or free plan is advertised on the site.

Sitebulb: Sitebulb offers a 14-day fully-featured free trial with no credit card required.

Teams that want to test functionality before any sales conversation get a much lower-friction path with Sitebulb.

Log file analysis

Oncrawl: Oncrawl includes a dedicated Log File Analyzer processing 500M+ log lines daily to track search engine bot behavior.

Sitebulb: Log file analysis isn't documented among Sitebulb's features.

Log analysis reveals how search engine bots actually crawl a site, which is critical for large sites diagnosing crawl-budget issues.

Deployment model

Oncrawl: Oncrawl is positioned as a cloud-based platform without a documented desktop option.

Sitebulb: Sitebulb offers both a locally-installed Desktop app (Lite up to 10,000 URLs, Pro up to 500,000 URLs) and a Cloud plan (up to 10 million URLs, with automated recurring crawls).

Teams that prefer a one-time desktop license rather than an ongoing subscription, or need offline/local control, have that option only with Sitebulb.

Data processing approach at scale

Oncrawl: Oncrawl has processed 300M+ URLs and explicitly emphasizes 100% unsampled data processing rather than statistical sampling.

Sitebulb: Sitebulb's Cloud plan supports crawls up to 10 million URLs per audit; unsampled processing isn't specifically documented.

For very large sites, whether data is sampled or fully processed affects the completeness and reliability of technical SEO conclusions.

AI-focused analysis tooling

Oncrawl: Oncrawl includes a dedicated AI Search Lens as part of its pre-built analysis Lenses for AI-driven search visibility insight.

Sitebulb: Sitebulb's 300+ checks focus on traditional technical SEO issues with prioritized 'Hints'; a dedicated AI-analysis lens isn't documented.

Teams specifically investigating AI search visibility get a purpose-built lens from Oncrawl rather than needing to interpret general technical findings.

Feature-by-Feature

Crawling & Scale

FeatureOncrawlSitebulb
JavaScript renderingAvailableAvailable
Large-scale crawlingAvailableAvailable
Unsampled/100% data processingAvailableNot documented

Technical Analysis

FeatureOncrawlSitebulb
Automated issue detection with prioritized explanationsNot documentedAvailable
Log file analysisAvailableUnavailable
AI Search Lens / AI-focused analysisAvailableNot documented

Access & Deployment

FeatureOncrawlSitebulb
Free trialUnavailableAvailable
Desktop/local install optionNot documentedAvailable
Published pricingUnavailableUnavailable

Reporting & Integrations

FeatureOncrawlSitebulb
Custom PDF reportingNot documentedAvailable
Full REST APIAvailableNot documented
Third-party integrations (GSC, GA, Sheets, Data Studio)Not documentedAvailable

Pricing Compared

Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.

Oncrawl

Enterprise (Custom) — Custom pricing Custom

Sitebulb

Desktop Lite — $13.50/month Billed annually (about $17.50/month billed monthly)
Desktop Pro — $35/month Monthly or annual
Cloud Standard — From $65/month Monthly
Cloud Enterprise — Up to $245/month Monthly

Pros & Cons

Oncrawl

Pros

  • Genuinely deep log file analysis built for very large, complex websites
  • Flexible custom reporting via a SQL-like Data Explorer
  • Strong JavaScript rendering support for modern, JS-heavy sites
  • Backed by BrightEdge's broader enterprise SEO resources since the 2022 acquisition
  • Established track record since 2013 with enterprise ecommerce and publisher clients

Cons

  • No public self-serve pricing; requires a sales conversation to get a quote
  • Overkill and cost-prohibitive for small to mid-sized websites
  • Steeper learning curve than lighter desktop crawlers like Screaming Frog
  • Increasingly positioned as part of the broader BrightEdge suite rather than a fully independent product
  • Log file analysis requires access to and comfort working with raw server logs

Sitebulb

Pros

  • Beginner-friendly explanations of technical SEO issues
  • Detailed, visual site architecture reporting
  • Flexible desktop or cloud deployment options
  • Affordable entry price for freelancers and solo consultants
  • Strong reputation among SEO professionals and agencies

Cons

  • Desktop crawls are limited by local machine resources
  • Cloud tiers become expensive at high URL volumes
  • Full feature set has a steeper learning curve than basic crawlers
  • Smaller integration ecosystem than larger enterprise platforms
  • No fully free tier beyond the trial period

Use Cases

Choose Oncrawl: Large, complex sites that need server log file analysis alongside crawling, want unsampled (100% data) processing, and are comfortable going through a demo/quote process rather than a self-serve trial.
Choose Sitebulb: Teams that want to test a fully-featured product for 14 days without a credit card, need a one-time desktop license option instead of a subscription, or want free JavaScript rendering bundled in by default.
Need both: Agencies with a portfolio spanning small sites (where Sitebulb's desktop license and free trial fit) and enterprise sites needing bot-behavior log analysis may license both rather than force every client onto one platform.

Oncrawl

  • Enterprise ecommerce technical SEO audits — Analyze crawl behavior and log files across large product catalogs to fix crawl budget waste and indexing issues.
  • Publisher crawl efficiency monitoring — Track how search engines crawl and index a high-volume publishing site over time.
  • Agency technical SEO consulting — Agencies use Oncrawl's log analysis and custom reporting to diagnose technical issues for large enterprise clients.

Sitebulb

  • Freelance SEO consultant auditing client sites — A solo consultant uses Sitebulb Desktop Lite to run technical audits and generate reports for a handful of client websites.
  • In-house team running recurring technical audits — A marketing team schedules recurring Sitebulb audits to monitor technical SEO health as the site changes over time.
  • Agency delivering white-label reports — An SEO agency uses Sitebulb Cloud and white-label PDF reporting to deliver branded audits across multiple client accounts.

Frequently Asked Questions

Does either tool offer a free trial?

Sitebulb offers a 14-day fully-featured free trial with no credit card required. Oncrawl doesn't advertise a free trial; the site promotes demo-based onboarding instead.

Which tool analyzes server logs?

Oncrawl has a dedicated Log File Analyzer that processes 500M+ log lines daily to track search engine bot behavior. This isn't a documented Sitebulb feature.

Can I install either tool locally instead of using the cloud?

Sitebulb offers a Desktop app (Lite up to 10,000 URLs, Pro up to 500,000 URLs) alongside its Cloud plan. Oncrawl is positioned as a cloud-based platform without a documented desktop option.

Does JavaScript rendering cost extra?

Sitebulb includes JavaScript rendering at no extra cost on all plans. Oncrawl's crawler also renders JavaScript, per its feature description.

Which tool has published pricing?

Neither publishes exact rates in full. Oncrawl requires booking a demo for a quote, and Sitebulb's exact Cloud and Desktop pricing requires checking the pricing page or sales.

Does either offer an API?

Oncrawl provides a full REST API for custom integrations and workflows. An API isn't documented among Sitebulb's listed features.

Read the full Oncrawl review · Read the full Sitebulb review