Lumar (formerly Deepcrawl) and LibreCrawl: side-by-side
A side-by-side comparison of Lumar (formerly Deepcrawl) and LibreCrawl — features, pricing, strengths, and where each tool falls short.
Lumar (formerly Deepcrawl) and LibreCrawl occupy the same technical SEO crawling category but are built for fundamentally different buyers. Lumar is a sales-gated, enterprise cloud platform with modular applications covering CI/CD pipeline QA, multi-domain monitoring, and expanding AI search visibility features. LibreCrawl is a free, MIT-licensed open-source crawler with no paid tiers, no URL caps, and no per-seat fees — maintained by a community on GitHub. The gap between them is not just price; it reflects entirely different philosophies about who should own crawling infrastructure.
The realistic audience considering both tools tends to be technical SEO professionals or agencies who already know they need serious crawl depth and JavaScript rendering, but are weighing whether enterprise managed infrastructure justifies the cost. Lumar's strength is its integrated ecosystem: CI/CD protection, change alerting, Google Search Console and Majestic data in one place, and SOC 2 Type 2 certification for compliance-sensitive organizations. LibreCrawl's strength is its complete absence of financial friction — unlimited URLs, unlimited seats, and full data sovereignty on your own server.
Both tools support JavaScript rendering, broken link detection, redirect chain analysis, canonical and hreflang auditing, and multi-project workflows. Neither offers a native keyword research database or proprietary backlink index. Where they diverge sharply: Lumar has documented log file analysis capabilities (the source material notes LibreCrawl explicitly lacks this), CI/CD pipeline integration, and scheduled cloud crawling; LibreCrawl has none of these shipped yet. LibreCrawl has $0 cost and no crawl limits; Lumar has no publicly listed price at all.
What each tool is
Lumar (formerly Deepcrawl)
Lumar (formerly Deepcrawl) is an enterprise-oriented, cloud-based website intelligence platform centered on its site crawler. It provides four core application modules — Analyze (deep audits), Monitor (change tracking and alerting), Protect (automated QA testing integrated into CI/CD pipelines), and Impact (stakeholder reporting and benchmarking). The platform covers technical SEO, generative engine optimization (GEO/AEO), web accessibility, site speed, and custom analytics. It is sold as a configurable platform where teams select the modules they need, and pricing is not published publicly — prospects must contact sales to obtain a quote. The platform holds SOC 2 Type 2 certification and is positioned primarily at enterprise and mid-market teams managing large or complex websites.
LibreCrawl
LibreCrawl is a free, MIT-licensed SEO crawler built and maintained by PhialsBasement on GitHub. It performs technical site audits covering broken links, duplicate content, meta tags, redirect chains, schema markup, hreflang, canonical tags, Core Web Vitals, and internal linking. It uses Playwright and Chromium for JavaScript rendering, enabling accurate crawling of React, Vue, Angular, and Next.js sites. The tool runs as a web-based application that can be self-hosted on any server or accessed via a demo instance at librecrawl.com/app; there are no paid tiers, no per-seat licensing fees, and no crawl limits beyond available hardware. Development is community-driven through GitHub Issues and Discussions.
At a glance
Lumar (formerly Deepcrawl)
Site Crawler / Technical SEO
A cloud-based website optimization platform built around deep site crawling for technical SEO, GEO/AEO, accessibility, and site speed at enterprise scale.
Not publicly documented
- •Pricing is not listed on the Lumar website; prospects are directed to fill out a contact form to receive a quote.
- •Modular packaging: teams select from Analyze, Monitor, Protect, and Impact modules.
- •No self-serve signup or publicly listed entry price was found in the source material.
- •G2 badges and enterprise testimonials (Cox Automotive, Fandom, Compare the Market) indicate a primary focus on enterprise and mid-market buyers.
LibreCrawl
Site Crawler / Technical SEO
A free, open-source site crawler positioned as an unlimited-URL alternative to Screaming Frog, with JavaScript rendering via Playwright and self-hosting support.
Free (only tier)
- •No paid tiers exist — all features are free under the MIT license
- •Demo instance at librecrawl.com/app: guest accounts limited to 3 crawls per 24-hour period (IP-tracked); free account registration removes that cap
- •Self-hosted deployment is recommended for production use with no restrictions
- •No commercial support contract available; support is community-driven via GitHub
Feature comparison
Side-by-side feature breakdown across pricing, data, workflows, and collaboration.
| Feature | Lumar (formerly Deepcrawl) | LibreCrawl |
|---|---|---|
| Data & coverage | ||
| Native Google Search Console integration | Yes | No |
| Keyword research database | No | No |
| Backlink index | No | No |
| SERP feature tracking | Not publicly documented | No |
| Workflows built for you | ||
| Quick wins (pages 1 click from page 1) | No | No |
| Content decay detection | No | No |
| Weak & dead URL identification | Yes | Yes |
| AI content briefs | No | No |
| Collaboration & sharing | ||
| Magic-link read-only sharing | Not publicly documented | No |
| Multi-property dashboards | Yes | Yes |
| Seats included on entry plan | Not publicly documented | Unlimited |
| Pricing & value | ||
| Entry plan price | Not publicly documented | $0 |
| Free tier | No | Yes |
| Crawling | ||
| JavaScript rendering | Yes | Yes |
| Crawl limit on entry plan | Not publicly documented | Unlimited |
| Scheduled / cloud crawling | Yes | Roadmap |
| Log file analysis | Not publicly documented | No |
| Runs locally (desktop) or in the cloud | Cloud only | Self-hosted server (web-based UI) |
The differences that actually matter
Pricing: sales-gated vs. genuinely free
Lumar publishes no pricing whatsoever — not even a starting range. Prospects must submit a contact form and go through a sales process before learning what the platform costs. LibreCrawl costs $0. Every feature is available under the MIT license at no charge. The demo instance at librecrawl.com/app limits guest accounts to 3 crawls per 24-hour period, but free account registration removes that cap entirely. For any team evaluating tooling where budget approval or transparent pricing is a prerequisite, this difference alone may end the comparison.
Scheduled and automated crawling
Lumar's Monitor module is explicitly built for continuous change tracking — it runs scheduled cloud crawls and fires customizable alerts when issues emerge or metrics shift. LibreCrawl does not yet ship scheduled crawling or automated monitoring; both are listed on the project roadmap but are not current features. This is a material gap for teams that need passive, ongoing site health surveillance rather than crawls they manually trigger. Lumar wins this dimension outright for any workflow that depends on recurring automated crawls.
CI/CD pipeline integration and pre-deployment QA
Lumar Protect is a dedicated application module that integrates directly into CI/CD pipelines, enabling automated technical SEO and accessibility testing before changes go live. No equivalent capability exists in LibreCrawl. For engineering-aligned SEO teams at organizations with active deployment pipelines — the kind of buyers Lumar cites from clients like Cox Automotive, Fandom, and Compare the Market — this is often the single most differentiating feature and has no workaround in the open-source tool.
Log file analysis
Lumar is documented as offering log file analysis capabilities. LibreCrawl's own sources explicitly call out the absence of log file analysis as a current limitation relative to tools like Lumar. Log file data — showing how Googlebot actually crawls a site versus how a spider sees it — is critical for diagnosing crawl budget waste, indexing anomalies, and bot behavior at scale. Teams for whom this is a core workflow requirement should treat LibreCrawl as not yet viable for that specific use case.
Data sovereignty and hosting model
LibreCrawl runs on infrastructure you own and control. Crawl data never leaves your environment. Lumar is cloud-only — there is no desktop application and no self-hosted option mentioned in any source material. For organizations in regulated industries or jurisdictions with strict data residency requirements, LibreCrawl's self-hosted model is a genuine structural advantage. For teams that prefer a fully managed service with SOC 2 Type 2 certification covering the vendor's infrastructure, Lumar is the documented compliant option.
Where each tool wins and falls short
Lumar (formerly Deepcrawl)
Strengths
- Deep, flexible site crawler capable of handling very large-scale websites with JavaScript rendering
- Automated QA testing via Lumar Protect with CI/CD pipeline integration — prevents issues from reaching the live site
- Multi-domain monitoring with customizable alerts, segmentation, and dashboards in a single view
- Expanding coverage beyond technical SEO into GEO/AEO (AI search visibility), web accessibility, and site speed
Weaknesses
- Pricing is entirely sales-gated — no public pricing tiers, free trial, or self-serve entry point documented on the site
- No native keyword research database or proprietary backlink index; relies on integrations (e.g., Majestic) for backlink data
- No documented quick-wins workflow, content decay detection, or AI content briefs grounded in GSC performance data
- Heavy enterprise positioning means smaller teams may find the platform over-engineered and difficult to procure without a lengthy sales process
LibreCrawl
Strengths
- Genuinely free with no URL limits, no paid tiers, and no per-seat fees under the MIT license
- Full JavaScript rendering via Playwright and Chromium for accurate crawling of modern SPA frameworks
- Advanced memory management (real-time profiling, virtual scrolling) enables stable crawls of 1M+ URL sites
- Self-hostable with complete data sovereignty; no crawl data sent to third-party servers
Weaknesses
- No log file analysis — sources explicitly note this as a missing feature relative to tools like OnCrawl or Lumar
- No one-click PDF or branded client report generation; agencies must build reporting from raw exports
- No commercial support contract; support relies on GitHub community with no guaranteed SLAs
- Scheduled/cloud crawling and API access are listed as roadmap items, not yet shipped features per the sources
Who each tool fits
Lumar (formerly Deepcrawl)
Best for
- •Enterprise or mid-market teams managing large-scale or complex websites that require deep technical audits
- •Teams that need automated QA testing integrated into CI/CD pipelines to catch issues before deployment
- •Organizations monitoring multiple domains or geographies who need customizable alerting and multi-property dashboards
- •SEO teams that want to combine crawl data with Google Analytics, Google Search Console, and Majestic data in one platform
Not ideal for
- •Small businesses or individuals — pricing is enterprise-oriented and not publicly available for self-serve sign-up
- •Teams looking for a keyword research database or backlink index as a primary feature, as these are not core Lumar capabilities
- •Users who want an out-of-the-box quick wins or content decay workflow driven by their own GSC performance data
- •Buyers who need transparent, self-serve pricing before engaging with a sales team
LibreCrawl
Best for
- •Freelance SEO consultants and agencies wanting to eliminate per-seat crawling license costs
- •Enterprise or compliance-sensitive teams that require self-hosted, data-sovereign crawling infrastructure
- •Technical SEO professionals auditing large sites (1M+ URLs) where desktop-tool memory limits cause crashes
- •Developers or teams comfortable with self-hosting who want to customize or fork a crawling tool
Not ideal for
- •Teams that need integrated log file analysis alongside crawling — the sources explicitly state LibreCrawl does not currently offer log file analysis
- •Agencies that need one-click branded PDF client reports — LibreCrawl does not provide this; data must be exported and formatted separately
- •Organizations requiring a commercial support SLA with guaranteed response times
Which should you choose?
Lumar is the clear choice for enterprise teams that need automated pre-deployment QA, multi-domain monitoring, log file analysis, and a compliant managed cloud environment — and can engage a sales team to procure it. LibreCrawl is the right choice for any team where license cost, URL limits, or data sovereignty constraints rule out a managed SaaS platform, provided they can self-host and live without scheduled crawls and commercial support.
Choose Lumar (formerly Deepcrawl) if…
- Your engineering team deploys code frequently and needs Lumar Protect's CI/CD integration to catch technical SEO regressions before they reach production.
- You manage multiple domains or geographies and need a single dashboard with customizable alerting that automatically tracks changes over time via scheduled cloud crawls.
- Your organization requires SOC 2 Type 2 certification, enterprise SLAs, or a formal vendor agreement — none of which LibreCrawl can provide.
- You need log file analysis alongside crawl data in the same platform; LibreCrawl explicitly does not offer log file analysis.
Choose LibreCrawl if…
- Your budget for crawling tooling is $0 or close to it — LibreCrawl is fully free under the MIT license with no paid tier and no URL restrictions beyond your hardware.
- You are auditing sites with 1M+ URLs and face memory crashes on desktop tools; LibreCrawl's real-time memory profiling and virtual scrolling are specifically built for stable large-scale crawls.
- Your organization requires on-premises, self-hosted infrastructure for data sovereignty or compliance reasons, and cannot send crawl data to a third-party cloud.
- You need unlimited seats across a team or agency without per-user licensing costs; LibreCrawl imposes no seat limits under any circumstance.
Frequently asked questions
What buyers ask when weighing Lumar (formerly Deepcrawl) and LibreCrawl.
No. LibreCrawl imposes no URL cap under any circumstance — the only practical limit is the hardware you deploy it on. The project's documentation specifically references stable crawls of sites with 1M+ URLs, enabled by real-time memory profiling and virtual scrolling. The demo instance at librecrawl.com/app limits guest users to 3 crawls per 24-hour period, but free account registration removes that crawl-session cap.
Lumar does not publish pricing on its website. There are no listed tiers, no starting price, and no self-serve signup. Prospects must fill out a contact form to receive a quote. The platform is sold modularly — teams select from Analyze, Monitor, Protect, and Impact modules — but module prices are also not disclosed publicly. Enterprise testimonials from clients like Cox Automotive and Fandom indicate the platform targets mid-market and enterprise buyers.
No. Lumar Protect is a dedicated CI/CD integration module that runs automated pre-deployment QA checks. LibreCrawl has no equivalent feature and does not document any API or pipeline integration capability in its current release. Scheduled crawls and API access are on the LibreCrawl roadmap but are not yet shipped. Teams that rely on catching technical SEO issues before deployment should not expect LibreCrawl to fill this role today.
No free trial is documented anywhere on the Lumar website or in any source material available. There is no self-serve signup, no freemium tier, and no time-limited trial offering mentioned. Access requires engaging a sales team through a contact form. LibreCrawl, by contrast, is free in perpetuity under the MIT license, with a public demo instance available at librecrawl.com/app.
Both do. LibreCrawl uses Playwright with Chromium in headless or headed mode, explicitly supporting React, Vue, Angular, and Next.js single-page applications. Lumar is described as an 'ultra-fast, ultra-flexible site crawler' with JavaScript rendering documented as a core capability. Neither tool has an advantage here based on available fact sheets — both handle modern JavaScript-rendered sites.
No. LibreCrawl's own documentation explicitly names log file analysis as a missing feature, calling it out specifically in comparison to tools like Lumar. If understanding how Googlebot crawls your site — versus how a traditional spider sees it — is a requirement, LibreCrawl is not a viable option in its current release. Lumar does offer log file analysis as a documented platform capability.
LibreCrawl imposes no per-seat limits. The MIT license and self-hosted model allow unlimited users on a single instance at no cost. Lumar does not publish seat counts for any tier; seat allotments are presumably negotiated as part of the sales process and are not documented publicly. For agencies or large teams wanting to avoid per-seat licensing costs entirely, LibreCrawl's model is unambiguously more permissive.
It depends on what 'compliance' means for your organization. LibreCrawl's self-hosted model means crawl data never leaves your infrastructure — a genuine advantage for data residency requirements. However, it offers no commercial support SLA, no SOC 2 certification, and no formal vendor agreement. Lumar holds SOC 2 Type 2 certification and can provide enterprise contracts. Compliance-sensitive teams should weigh data sovereignty (LibreCrawl advantage) against vendor certification and SLA needs (Lumar advantage).