Deepcrawl is now Lumar. Read more.
DeepcrawlはLumarになりました。 詳細はこちら

Website optimization, simplified.

Find, prioritize, and fix website issues at scale — it’s easy with Lumar.

See why leading brands use Lumar to manage their websites’ technical health and performance — get a demo today

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Empower digital teams with the ultimate enterprise-scale website optimization platform

For Website Teams
Actionable, centralized website optimization insights

Finding issues on your website isn’t enough – you need to take action and fix those problems to achieve real results.

Lumar provides the deep insights you need (at lightning-fast speed!) and makes it easy to take action — and prevent future issues — with automated QA testing, AI-powered suggested accessibility fixes, customizable alerts, detailed data for your developer tickets, and clear reporting that even your CEO can understand.

Explore the full Lumar platform
Lumar Analyze - Website Optimization Dashboard
Build connected SEO, accessibility, and website health workflows with Lumar. Graphic shows half-circle image representing connected website workflows, segmented into slices for - 1) Analyze 2) Monitor 3) Protect and 4) Impact. Profesisonal Services and Platform Integrations appear under the half circle.
Optimization at Every Stage
Build connected website optimization workflows

Your website has numerous stakeholders: SEOs, developers, accessibility teams, UX designers, digital marketers, and the C-suite. Keep them all aligned with Lumar — a single source of truth for everyone working on your website, with extensive metrics for technical SEO, website accessibility, site speed, and more.

Across 4 core platform apps and 3 key metric categories (technical SEO, site speed, and accessibility — plus custom metrics), your cross-functional website teams can now work together on site improvements from a centralized resource. (Did we mention that you can also easily connect your data from other platforms to bring even more detailed insights into Lumar with our integrations?)

  • Analyze your website – at scale – to uncover optimization issues relating to SEO, site speed, and accessibility, all in one place.
  • Monitor your site (or sites) and get notified of changes or trends to act quickly when new issues arise.
  • Protect your site from new issues being introduced with automated QA testing on your staging site.
  • Show the Impact of your work with easy-to-understand reporting to share with your stakeholders.

Plus, get hands-on help and an extension of your internal web team from our professional services team.

Choose your features & get pricing
The fastest website crawler on the market

Built for speed and scale. Lumar’s industry-renowned website crawler leverages best-in-class serverless architecture design so you can crawl as fast as your infrastructure allows (up to 450 URLs per second in testing).

With hundreds of reports across technical SEO, site speed and accessibility, plus opportunities for tailored analytics, Lumar gives you all the insights you need to boost your website’s performance, rankings, conversions and revenue.

Learn about our website crawler
Lumar's ultra-fast website crawler for enterprise scale SEO
Graphical representation of the Lumar Traffic Funnel
For Technical SEO
What technical SEO issues are impeding your site’s search performance?

With more than 250 reports on key technical SEO issues, Lumar gives you a comprehensive view of the technical foundations of your site. Our traffic funnel and health scores eliminates data overload, so you can quickly spot opportunities for growth and easily communicate status and progress to key stakeholders. And with Lumar, you get complete flexibility over your crawl strategy, so you can crawl as little or as much of your site as you need.

Lumar Technical SEO Tools
For Site Speed
Find and resolve website speed issues for better performance and cost reductions

Lumar gives you not only the analysis of what needs fixing when it comes to site speed but, critically, we provide the details you need to understand the issues and take action. Prioritize effectively with aggregated issue dashboards that help you identify the biggest opportunities for creating a high-performing, revenue-driving site that delivers a great user experience.

Lumar Site Speed Tools
Graphic representing Lumar's Site Speed Health Scores, showing an overall health score, and scores for FCP, LCP and TBT with trend lines
Graphical representation of the Top Issues element of the Lumar Analyze accessibility overview dashboard.
For Website Accessibility
Is your website accessible and WCAG-compliant?

Lumar provides the digital accessibility insights you need to deliver a great experience for all users. Covering all automatable tests related to WCAG 2.2 levels A through AAA, Lumar helps you easily identify accessibility issues and save time with effective prioritization, fewer false positives on color contrast testing, and automated a11y QA testing. And with our AI-powered accessibility suggestions, you can quickly understand not just what needs fixing, but also how to do it.

Lumar Digital Accessibility Tools
For Digital Marketing
The website intelligence you need to drive business growth

It’s no secret: high-performing websites can drive enormous business growth.

But when it comes to realizing this potential, marketing leaders are often in the dark. Not anymore: Lumar is the lightbulb moment you’ve been waiting for. Monitor and benchmark your site’s technical health to improve SEO and accessibility compliance, drill down into the details with robust analytics, and discover new opportunities for revenue-driving organic growth.

Lumar for Digital Marketers
Lumar impact features for digital marketing
Take a tour of the Lumar platform

Trusted by enterprise website teams around the globe

Lumar is ranked as a G2 leader in SEO software

G2 SEO software leader badges - Lumar

Discover new opportunities for website-driven growth with Lumar

The technical foundation of your website plays a major role in how well your business performs in search engines — and how well it converts visitors into customers.

See your website’s technical health in a new light with Lumar.

Key Lumar Apps & Features

Lumar Analyze

Uncover new opportunities to optimize your site. Dive deep into technical SEO, website accessibility, and website health analytics with hundreds of built-in reports and endless opportunities for custom extractions—so you’ll know exactly which levers to pull to boost SERP rankings, drive traffic, and provide great experiences for all your visitors. Explore Lumar Analyze.

Lumar Monitor

Gain a global view of website changes, technical SEO, and accessibility metrics across multiple domains or major site sections — all in one place. Plus set tailored alerts to ensure you never miss a critical issue. Explore Monitor.

Lumar Protect

Protect your website traffic by automating QA testing in staging environments and preventing SEO or accessibility issues before they are introduced to your live site. Build new efficiencies and improve alignment with developer teams. Explore Lumar Protect.

Lumar Impact

See how your site stacks up to others in your industry with Lumar’s website health scores. Select your industry and compare your website health metrics with the industry averages to see where you’ve got a competitive advantage — or where you need to improve. Explore Lumar Impact.

Platform Integrations

Easily connect your Lumar data to the rest of your business’s tech stack with integrations for major analytics and business intelligence platforms. Want even more flexibility? Check out our GraphQL API.

Professional Services

Working with our in-house SEO experts and accessibility partners helps alleviate pressure from your internal teams and build impactful strategies tailored to your site’s specific structure, performance, and goals.

How Lumar users uncover their websites’ full potential


  • Photo of Arturs Cavniss, Technical SEO Lead at Bensons for Beds.
    Bensons for Beds Logo

    “Lumar’s a huge time saver and really easy to use. I can see all issues in one place, know where to focus as everything’s broken down in a super logical way, and easily stay on top of progress with in-built tasks. Plus, the alerts catch any major issues before they lose us traffic or revenue. If you’re looking to boost your site’s technical health, Lumar and its amazing team have got your back.”

    Arturs Cavniss, Technical SEO Lead

  • Met Office Logo

    Lumar’s accessibility metrics have been a game changer. With its user-friendly design and comprehensive classification and description of issues, it has allowed us to quickly take action to improve our website’s accessibility and overall health, and it has been rewarding to watch our health scores steadily improve on the platform as a result.

    Heather Bidwell, SEO Manager

  • Fandom
    Fandom logo

    “Lumar Monitor has literally saved us hours a week. Instead of going to each site one by one and asking if work has been completed, I can quickly see if anything has been done and see the results and progress since then. It’s been a huge time saver and helped us see at a glance who’s been doing what. It’s been a huge, huge help.”

    Joshua Taylor Titsworth, Senior Analyst, Fandom.com

  • Arriva Dark
    arriva uk customer testimonial review for Lumar website intelligence platform

    “Lumar is a change enablement tool that’s helped us drive a +50% increase in digital conversion and +10% increase in search engine visibility”

    Dave Cain, Head of Digital Marketing, Arriva

  • client testimonial for lumar's tech seo saas platform - cox auto

    “The extra insights we get from our calls with Lumar have been really valuable. The support we get really is like having an extension of our internal team.”

    Chris Nichols, Senior Manager, Enterprise SEO & Product Management

  • Arriva
    arriva uk customer testimonial review for Lumar website intelligence platform

    “Lumar has saved us an enormous amount of time. So much so, we estimate without the tool, and to cover the vast array of SEO analytics and insights highlighted within Lumar, we would have needed to employ another full-time member of staff within our digital team.”

    Dave Cain, Head of Digital Marketing, Arriva UK Bus

  • Catenamedia
    lumar customer review for technical seo analytics tool

    “Lumar is fundamental when it comes to technical audits, as the tool carries out an in-depth analysis of each one of our brands. It provides insightful data that helps to shape our decisions. I love how easy it is to connect Lumar with Google Analytics, Google Search Console, and Majestic data for each of our brands. Lumar congregates all that data and makes my life a lot easier. Definitely valuable in helping us to identify the highest priority issues in a data set.”

    David McAdam, Technical SEO Strategist

  • Cox automotive

    “Lumar is obviously top-of-the-line, with a lot of cutting-edge aspects to the technology. But it was also really important for us to find someone that would be a partner for us. The extra services are a big part of why we chose Lumar.”

    Matthew Grabiak, Principal SEO Product Manager

  • Lumar heart

    “Lumar Protect is a very reliable tool. We used Protect, for example, to check if anything is redirecting where it shouldn’t be. Before, I had to check everything manually but, with Lumar, you can set up tests beforehand and really see what happens. It’s a great relief to know there is something that will notify me if anything has changed.”

    Senior SEO Manager, European Fashion Retailer

  • Fandom
    Fandom logo

    “Lumar Monitor is everything any agency or enterprise-level company needs to quickly track and look at updates, recommendations, trends, and issues. If you have hundreds of sites, it’s a way to look at things at-a-glance and know exactly what’s going on — and what issues you need to be paying attention to.”

    Joshua Taylor Titsworth, Senior Analyst, Fandom.com

Improve SEO, UX, & accessibility — it’s all possible with Lumar

Get pricing for the Lumar plan that’s right for your team.
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