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SEO · head to head

Lumar vs Screaming Frog SEO Spider

Lumar logo

Lumar

SEO

Website intelligence platform, formerly DeepCrawl, that can fail a build on SEO and accessibility regressions

From
On request
Rated
-
Full reviewWebsite
Screaming Frog SEO Spider logo

Screaming Frog SEO Spider

SEO

Desktop crawler for technical SEO audits and site analysis

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Screaming Frog SEO Spider has a free tier, so it costs nothing to try first.
  • Each has a real cost: Lumar the crawl allowance is measured in URLs per month, so full crawls of a large site exhaust it quickly and teams end up sampling, which is exactly how regressions escape.; Screaming Frog SEO Spider free version limited to 500 URL crawl limit for meaningful analysis
  • They diverge on capability: Lumar covers Site crawler, Screaming Frog SEO Spider covers Crawl up to 500 URLs (free) or unlimited (paid).
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Lumar and Screaming Frog SEO Spider actually diverge.

Attributes where Lumar and Screaming Frog SEO Spider differ
AttributeLumarScreaming Frog SEO Spider
Starting priceOn requestFree
Pricing modelquotesubscription
Free tierNoYes
PlatformsWeb, REST APIWindows, macOS, Linux

Identical on both: user rating (Not yet rated), category (SEO).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Lumar

  • Site crawler
  • Protect
  • Automation Hub
  • Accessibility auditing
  • Monitor
  • Impact

Only in Screaming Frog SEO Spider

  • Crawl up to 500 URLs (free) or unlimited (paid)
  • 300+ SEO issue checks
  • JavaScript rendering with Chromium
  • XML sitemap generation
  • Custom data extraction
  • Google integrations
  • Scheduled crawls and comparisons
  • Multi-language support

What people use each for

The jobs each tool is most often brought in to do.

Lumar

  • A site deploying weekly that keeps shipping accidental noindex tags and blocked resources into productionnot Screaming Frog SEO Spider
  • Comparing crawls before and after a migration to prove what changed rather than what looks wrong nownot Screaming Frog SEO Spider
  • Reporting accessibility and technical SEO issues from one crawl to satisfy two different internal ownersnot Screaming Frog SEO Spider
  • Prioritising a backlog of thousands of technical issues by estimated traffic impact rather than severity labelnot Screaming Frog SEO Spider

Screaming Frog SEO Spider

  • Identify broken links and server errors on large sitesnot Lumar
  • Audit redirect chains during site migrationsnot Lumar
  • Analyze and fix duplicate content issuesnot Lumar
  • Extract and validate structured data on pagesnot Lumar
  • Monitor site health with scheduled crawlsnot Lumar

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Lumar

  • The crawl allowance is measured in URLs per month, so full crawls of a large site exhaust it quickly and teams end up sampling, which is exactly how regressions escape.
  • It provides no keyword, ranking or backlink data, so it is always an addition to the SEO budget rather than a consolidation of it.
  • The pipeline gating that justifies the price needs engineering adoption, and a marketing budget cannot buy that agreement.
  • Log file analysis is not the core strength it is at Botify, so crawl budget diagnosis on very large sites is weaker.
  • The 2022 rebrand from DeepCrawl means much of the community knowledge, tutorials and older documentation is filed under the previous name.

Screaming Frog SEO Spider

  • Free version limited to 500 URL crawl limit for meaningful analysis
  • Desktop application required, not available as web-based tool
  • Unlimited crawls depend on system memory and storage capacity
  • Annual licensing model with no monthly option
  • Learning curve for advanced features like custom extraction

Pricing, plan by plan

Lumar

On request
  • Lumar$undefined/year
    • Priced by URLs crawled per month
    • Protect, Impact and accessibility modules licensed separately
    • Annual contract

Screaming Frog SEO Spider

Free
  • FreeFree
    • 500 URL crawl limit
    • Core features included
    • Link checking and metadata analysis
  • Paid License$199/year
    • Unlimited URL crawls (limited by system memory/storage)
    • All free version features
    • Advanced features unlocked

Which should you pick?

Choose Lumar if

  • You need site crawler.
  • You work on Web, REST API.
  • You also want protect.
Lumar review

Choose Screaming Frog SEO Spider if

  • You need crawl up to 500 urls (free) or unlimited (paid).
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want 300+ seo issue checks.
Screaming Frog SEO Spider review

Questions people ask

Is Lumar or Screaming Frog SEO Spider better?
Neither clearly leads. Lumar starts at On request and Screaming Frog SEO Spider at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lumar or Screaming Frog SEO Spider?
Screaming Frog SEO Spider has a free tier; the other does not. Paid plans start at On request for Lumar and Free for Screaming Frog SEO Spider.
Does Lumar or Screaming Frog SEO Spider run on more platforms?
Lumar runs on Web, REST API. Screaming Frog SEO Spider runs on Windows, macOS, Linux.
Can I use Screaming Frog SEO Spider for free?
Yes. Screaming Frog SEO Spider has a free tier, so you can try it without paying. Lumar starts at On request.
What is Lumar best used for?
Lumar is most often used for a site deploying weekly that keeps shipping accidental noindex tags and blocked resources into production, comparing crawls before and after a migration to prove what changed rather than what looks wrong now, reporting accessibility and technical seo issues from one crawl to satisfy two different internal owners, prioritising a backlog of thousands of technical issues by estimated traffic impact rather than severity label. Of those, a site deploying weekly that keeps shipping accidental noindex tags and blocked resources into production and comparing crawls before and after a migration to prove what changed rather than what looks wrong now are not what Screaming Frog SEO Spider is typically brought in for.
What can Lumar do that Screaming Frog SEO Spider cannot?
Lumar covers Site crawler, Protect, Automation Hub, Accessibility auditing. Screaming Frog SEO Spider covers Crawl up to 500 URLs (free) or unlimited (paid), 300+ SEO issue checks, JavaScript rendering with Chromium, XML sitemap generation.

Answered from the vendors’ own pages

Lumar: Is Lumar the same as DeepCrawl?

Yes, the same company and product line, rebranded in 2022. Older tutorials under the DeepCrawl name still broadly apply.

Screaming Frog SEO Spider: What is the difference between free and paid Screaming Frog licenses?

The free version crawls up to 500 URLs with core features. The paid license (GBP 199/year) includes unlimited URL crawls limited only by system memory and storage, plus advanced features.

Source
Lumar: Can it really block a deployment?

Yes, through Automation Hub integrated into your CI pipeline. Whether your engineering team accepts that gate is the real question.

Screaming Frog SEO Spider: Can Screaming Frog crawl JavaScript-rendered content?

Yes. Screaming Frog renders JavaScript through headless Chromium, enabling crawls of React, Angular, Vue.js, and other JavaScript frameworks.

Source
Lumar: Does it replace Screaming Frog?

For scheduled monitoring and pipeline testing, yes. For quick ad hoc crawls on a laptop, the desktop crawler remains faster and cheaper.

Screaming Frog SEO Spider: What platforms does Screaming Frog support?

Screaming Frog SEO Spider is available for Windows, macOS (Apple Silicon and Intel), and Linux (Ubuntu and Fedora).

Source
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