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SEO · head to head

Lighthouse vs SISTRIX

Lighthouse logo

Lighthouse

SEO

Audit web page performance and quality

From
Free
Rated
-
Full reviewWebsite
SISTRIX logo

SISTRIX

SEO

German SEO toolbox built around a domain Visibility Index measured weekly since 2008

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Lighthouse has a free tier, so it costs nothing to try first.
  • Each has a real cost: Lighthouse performance scores vary significantly due to A/B testing, device differences, browser extensions, and antivirus software affecting results; SISTRIX coverage is deepest in German-speaking Europe and thinner in the United States and Asia, so international teams still need Ahrefs or Semrush alongside it.
  • They diverge on capability: Lighthouse covers Performance scoring, SISTRIX covers Visibility Index.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Lighthouse and SISTRIX actually diverge.

Attributes where Lighthouse and SISTRIX differ
AttributeLighthouseSISTRIX
Starting priceFreeOn request
Pricing modelfreequote
Free tierYesNo
PlatformsChrome, EdgeWeb, REST API
Founded1998Unknown

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 Lighthouse

  • Performance scoring
  • Accessibility audit
  • SEO check
  • PWA validation
  • Chrome support
  • Edge support

Only in SISTRIX

  • Visibility Index
  • Competitor discovery
  • SERP feature tracking
  • Link module
  • Optimizer
  • Country coverage

What people use each for

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

Lighthouse

  • Performance auditing to identify page loading speed improvementsnot SISTRIX
  • Accessibility compliance checking for users with disabilitiesnot SISTRIX
  • SEO optimization verification for search engine compatibilitynot SISTRIX
  • Security and best practices scanning for code healthnot SISTRIX
  • Progressive web app validation and CI/CD pipeline integrationnot SISTRIX

SISTRIX

  • Reporting search visibility to a board in Germany where the Visibility Index is the expected metricnot Lighthouse
  • Comparing a domain against competitors over years, including before you started tracking anythingnot Lighthouse
  • Due diligence on an acquisition target where you need visibility history you did not collect yourselfnot Lighthouse
  • Diagnosing whether a traffic drop coincided with a core update by comparing against the whole measured marketnot Lighthouse

Where each one falls short

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

Lighthouse

  • Performance scores vary significantly due to A/B testing, device differences, browser extensions, and antivirus software affecting results
  • Limited to metrics that contribute to scores; Opportunities and Diagnostics don't directly impact scoring
  • Diminishing returns above 0.96 score, making perfect 100 scores extremely challenging
  • Scores based on HTTP Archive data which may not reflect all performance scenarios

SISTRIX

  • Coverage is deepest in German-speaking Europe and thinner in the United States and Asia, so international teams still need Ahrefs or Semrush alongside it.
  • The Visibility Index is domain-level, so a dramatic chart movement can come entirely from pages that carry no commercial value and requires drilling down before it means anything.
  • The link index is smaller than the market leaders, which matters if backlink discovery rather than visibility measurement is your main use.
  • Modules are priced individually, so a team that needs SEO, links and the Optimizer pays a multiple of the entry price for one module.
  • Documentation, community material and support are German-first, and while English is available the depth of the two is not equal.

Pricing, plan by plan

Lighthouse

Free
  • FreeFree
    • Performance audit
    • Accessibility check
    • SEO analysis

SISTRIX

On request
  • SISTRIX Toolbox$undefined/month
    • Sold as monthly modules rather than one bundled plan
    • Additional countries and Optimizer projects priced on top
    • Monthly term without long commitment

Which should you pick?

Choose Lighthouse if

  • You need performance scoring.
  • You want to start without paying.
  • You work on Chrome, Edge.
  • You also want accessibility audit.
Lighthouse review

Choose SISTRIX if

  • You need visibility index.
  • You work on Web, REST API.
  • You also want competitor discovery.
SISTRIX review

Questions people ask

Is Lighthouse or SISTRIX better?
Neither clearly leads. Lighthouse starts at Free and SISTRIX at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lighthouse or SISTRIX?
Lighthouse has a free tier; the other does not. Paid plans start at Free for Lighthouse and On request for SISTRIX.
Does Lighthouse or SISTRIX run on more platforms?
Lighthouse runs on Chrome, Edge. SISTRIX runs on Web, REST API.
Can I use Lighthouse for free?
Yes. Lighthouse has a free tier, so you can try it without paying. SISTRIX starts at On request.
What is Lighthouse best used for?
Lighthouse is most often used for performance auditing to identify page loading speed improvements, accessibility compliance checking for users with disabilities, seo optimization verification for search engine compatibility, security and best practices scanning for code health. Of those, performance auditing to identify page loading speed improvements and accessibility compliance checking for users with disabilities are not what SISTRIX is typically brought in for.
What can Lighthouse do that SISTRIX cannot?
Lighthouse covers Performance scoring, Accessibility audit, SEO check, PWA validation. SISTRIX covers Visibility Index, Competitor discovery, SERP feature tracking, Link module.

Answered from the vendors’ own pages

Lighthouse: Is Lighthouse free?

Yes. Lighthouse is completely free and open-source. It is developed by Google and integrated into Chrome DevTools, PageSpeed Insights, and available as a command-line tool. There are no licensing fees or premium tiers.

Source
SISTRIX: What is the Visibility Index actually measuring?

Rankings for a large fixed keyword set per country, weighted by expected traffic, measured weekly. It is not your keyword list, which is what makes it comparable.

Lighthouse: Can I run Lighthouse offline?

Yes. Lighthouse can run offline in multiple ways: through Chrome DevTools (built into Chrome), as a command-line tool (Node.js), or as a Node.js module integrated into your build process. You do not need an internet connection after installing the tool.

Source
SISTRIX: Can it replace Ahrefs or Semrush?

For German-language visibility reporting and competitor history, yes. For global keyword research and backlink analysis it is a complement rather than a replacement.

Lighthouse: What pages can Lighthouse audit?

Lighthouse can audit any web page, including pages that require authentication. This is an advantage over some alternative tools that cannot test behind login screens. You can run audits on public pages or authenticated pages via command-line with custom headers.

Source
SISTRIX: How far back does the data go?

To 2008 for the earliest supported countries, which is longer than any rank tracker can offer on your own keyword list.

Lighthouse: Can Lighthouse prevent performance regression during development?

Yes. Lighthouse CI is available to prevent performance degradation during development cycles. You can integrate Lighthouse CI into your continuous integration pipeline to automatically audit pages on every commit and fail builds if performance metrics fall below thresholds you define.

Source
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