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

Website optimization, simplified.

Quickly identify, prioritize, fix, and prevent website optimization issues. Enterprise-scale solutions for SEO, web accessibility, and site speed.

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

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Collect, analyze, and activate data at scale 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 fast, and makes it easy to take action—and prevent future issues—with at-scale analytics, AI-generated ticket content, customizable alerts and dashboards, 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
Collect, analyze, and activate website data at any scale.

An optimized website is business-critical, but websites and development processes are more complex than ever and constantly evolving. Getting the right data at scale is difficult, and building on top of inherited problems and tech debt compounds issues. New issues get introduced that you’re not even aware of, and you’re navigating changing priorities which makes prioritization a big challenge—if not almost impossible. That’s why we’ve made it easy for you to get the data you need, analyze it effectively, and take action.

  • Get more done by identifying, prioritizing and fixing issues at scale, fast, with Analyze.
  • Mitigate the risk of lost traffic or revenue, or non-compliance with Monitor.
  • Save time and money wasted on fixing preventable issues, with Protect.
  • Communicate better, gain competitive edge, and get buy-in for website optimization projects, with Impact.

Plus, get hands-on help and extend your internal web team with our professional services experts.

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 custom 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. Image shows examples of high crawl speeds perfect for enterprise-scale websites.
Graphical representation of the Lumar Traffic Funnel
For Technical SEO
What technical SEO issues are impeding your site’s search performance?

Lumar gives you a comprehensive view of the technical foundations of your site, while our traffic funnel, health scores, and visualizations eliminate data overload, so you can quickly spot opportunities for growth and easily communicate progress to key stakeholders. What’s more, with Lumar, you get complete flexibility over your crawl strategy, AI-supported processes to help get issues fixed, and a proactive approach to prevent issues happening again.

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, 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. Plus, get issues fixed quickly with AI-supported processes, and stop issues recurring.

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. What’s more, our AI-Powered Suggested Solutions, mean you can quickly understand not just what needs fixing, but also how to do it, and our proactive approach prevents issues recurring in the future.

Lumar Digital Accessibility Tools
For Custom Use Cases
Make every data point on your website an actionable opportunity

Get a tailored approach to website health auditing that goes beyond one-size-fits-all solutions. It’s a game-changer for website health optimization and personalization, giving you static metrics to report on practically anything on the page, dynamic analysis—replicating human behavior to analyze, understand and optimize user flows—or integration and comparison of external data sources.

Explore What’s Possible
Graphical representation of Lumar's Custom Metrics showing people using computers
Lumar impact features for digital marketing
For Digital Marketing
The website optimization platform 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 site speed, and accessibility compliance. Drill down into the details with robust analytics, and discover new opportunities for revenue-driving organic growth.

Lumar for Digital Marketers

Improve tech SEO, UX, site speed & accessibility — all in one place

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

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

Lumar Analyze

Get more done by identifying, prioritizing and fixing issues at scale, fast. Get the complete picture with comprehensive analysis of technical SEO, site speed and accessibility—plus bespoke analysis of your unique site features. Prioritize better and quicker, and take action with clear guidance, and AI-generated ticket content to ensure devs have all the information they need. Explore Lumar Analyze.

Lumar Monitor

Mitigate the risk of lost traffic or revenue, or non-compliance. Focus on what matters most, with completely customizable alerts. Simplify monitoring of multiple domains, geographies or important site sections in one place, with fully customizable dashboards giving a global view in one place. Explore Monitor.

Lumar Protect

Save time and money wasted on fixing preventable issues. Stop issues recurring with regular template testing to identify issues before they’re published to your site. Reduce bugs and fully automate QA testing by integrating with your CI/CD pipeline. Explore Lumar Protect.

Lumar Impact

Easily communicate status and progress to stakeholders in an easy-to-understand way. Benchmark your site against industry averages to gain competitive edge. Explore Lumar Impact.

Platform Integrations

Get a deeper understanding of how your website performs, by combining Lumar with your tech stack. Build fast, stable connections using our GraphQL API.

Professional Services

Extend your team, without additional headcount. Alleviate internal team pressure by partnering with our industry experts. Get bespoke advice and guidance, aligned to your site’s specific structure, performance and goals.

How Lumar users uncover their websites’ full potential


  • Kunal Sharma, Senior SEO Manager, Bulk
    Bulk Logo

    “Lumar gives you everything you need for website analysis in one place, clearly laid out, rather than using multiple sources or overwhelming you with data. And the Lumar team is really friendly, helpful, and responsive. If I have any questions, they get back to me straight away, so I don’t have to wait weeks to respond to simple questions. Working with both the Lumar platform and team really is seamless.”

    Kunal Sharma, Senior SEO Manager

  • Andy Clear, Head of SEO at Compare the Market.
    Compare the Market logo

    Lumar gives us all the data we need to understand the technical issues impacting our search performance. The data is laid out in a really logical way, with high-level health scores and visualizations that make prioritization and communicating with stakeholders easy, backed up by all the detail we need when we need it. It saves us time and helps us make meaningful progress, which is exactly what we need.

    Andy Clear, Head of SEO

  • 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

  • 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

  • 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

  • Western Financial Group Logo

    “Lumar removes unknowns so you can make more informed decisions. With the health scores, I can get an instant, at-a-glance view to see the impact of changes, delve into the details, and fix any issues immediately. I’m on the platform so regularly it’s one of the few passwords I still know!”

    Rod Cunniam, VP of Digital Insurance Solutions

  • 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

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