SEOPeek vs Lumar (DeepCrawl): Lightweight API vs Enterprise Crawler

Lumar (formerly DeepCrawl) is one of the most powerful enterprise SEO crawlers on the market—trusted by agencies and in-house teams at Fortune 500 companies for deep technical SEO analysis across millions of pages. But at $500+ per month, most of that crawling power goes unused if all you need is automated on-page SEO checks on individual URLs. SEOPeek is a focused alternative: a single REST API that audits any URL for 20 key SEO factors and returns JSON in under 2 seconds, starting at $0/month. This guide breaks down exactly when each tool makes sense.

1. What Lumar (DeepCrawl) Does

Lumar, originally launched as DeepCrawl in 2010 and rebranded in 2022, is an enterprise website intelligence platform. Its core capability is crawling entire websites—following every internal link, analyzing every page, and producing comprehensive reports about technical SEO health, site architecture, and content quality.

Lumar’s crawler can process millions of URLs per crawl, making it the tool of choice for large e-commerce sites, media publishers, and enterprise brands with complex site architectures. The platform goes well beyond basic on-page checks:

• Full-site crawling: follows internal links to discover and analyze every reachable page, mapping your site’s complete architecture
• Crawl budget analysis: identifies pages that waste search engine crawl budget—redirect chains, duplicate content, thin pages, orphan pages
• Internal link analysis: maps link equity flow, identifies broken internal links, analyzes anchor text distribution, and visualizes site structure
• JavaScript rendering: renders JavaScript-heavy pages to audit what search engines actually see after client-side rendering
• Hreflang validation: checks international SEO tags across all language/region variants for consistency and correctness
• Log file analysis: integrates server log data to understand how Googlebot actually crawls your site versus how your site is structured
• Accessibility audits: checks WCAG compliance alongside SEO issues
• Change tracking: compares crawls over time to detect regressions, migrations, and improvements
• Enterprise dashboards: customizable reporting for stakeholders, agencies, and multi-team organizations

Lumar also offers an API (Lumar API, formerly DeepCrawl API), but it is designed for extracting crawl results programmatically—not for real-time per-page auditing. A typical Lumar workflow involves scheduling a crawl (weekly or monthly), waiting for it to complete (minutes to hours depending on site size), then analyzing the results in the dashboard or via API.

The platform serves enterprise SEO teams, agencies managing large client portfolios, and technical SEO consultants who need the deepest possible analysis of a website’s health. Pricing reflects this: plans start around $500/month and scale into thousands for large sites and advanced features.

2. What SEOPeek Does

SEOPeek is a single-purpose SEO audit API. You send it a URL, it fetches the page, runs 20 on-page SEO checks, and returns a JSON response with a numeric score, a letter grade, and pass/fail results for each check—all in under 2 seconds.

The checks cover the on-page factors that have the most direct impact on search rankings:

• Title tag: existence, length, keyword placement
• Meta description: existence, length, uniqueness
• Heading structure: H1 presence, hierarchy, count
• Open Graph tags: og:title, og:description, og:image
• Canonical URL: presence and correctness
• Structured data: JSON-LD schema detection
• Image optimization: alt text coverage, image count
• Robots directives: meta robots, X-Robots-Tag
• Content quality: word count, internal/external link ratio
• Mobile readiness: viewport tag, font sizes

There is no dashboard, no crawl scheduler, no site architecture analysis. SEOPeek is infrastructure: a building block that developers wire into their own systems. You call it from CI/CD pipelines, monitoring scripts, client reporting tools, or custom dashboards. The API is the product.

The free tier gives you 50 audits per day with no API key required. Paid plans start at $9/month for 1,000 audits and $29/month for 10,000 audits. There are no feature gates between tiers—every plan gets the same 20 checks, the same JSON response, the same speed.

3. Feature Comparison Table

4. Pricing Comparison

The pricing gap between these tools is the widest in any SEOPeek comparison. Lumar serves enterprise customers with enterprise budgets. SEOPeek serves developers with developer budgets.

The math is stark. SEOPeek Pro at $29/month gives you 10,000 on-page audits via API. The cheapest Lumar plan starts at roughly $500/month and is designed for full-site crawling, not per-URL API auditing. If you only care about automated on-page SEO checks, SEOPeek delivers audit results at roughly one-seventeenth the cost of the cheapest Lumar plan.

This is not a criticism of Lumar’s pricing. Enterprise crawling infrastructure at scale is expensive to build and operate. Lumar’s cost reflects the depth of its analysis, the scale of its crawling engine, and the enterprise support that comes with it. But if you do not need full-site crawling, you are paying for capabilities you will never use.

5. When to Use Lumar

Lumar is the right choice when you need comprehensive, site-wide technical SEO intelligence. Specifically:

• You manage a large website (10,000+ pages) and need to understand its complete architecture, internal linking structure, and crawl efficiency. Lumar’s full-site crawl reveals issues that per-page tools cannot see.
• You are running a site migration—changing domains, restructuring URLs, or moving to a new CMS. Lumar’s crawl comparison feature shows exactly what changed between pre- and post-migration crawls.
• You need JavaScript rendering analysis. If your site uses client-side rendering (React, Angular, Vue), Lumar can render pages and audit what search engines actually see after JavaScript execution.
• You need log file analysis. Understanding how Googlebot actually crawls your site versus how your site is structured requires correlating server logs with crawl data. Lumar integrates both.
• You manage multiple large client sites as an agency and need enterprise dashboards, custom reporting, and multi-stakeholder access.
• You need crawl budget optimization. Identifying thin content, duplicate pages, redirect chains, and orphan pages that waste Googlebot’s crawl budget requires full-site analysis.
• Your team includes non-developers. Lumar’s dashboard, visualizations, and reports are designed for SEO managers, content strategists, and stakeholders who do not write code or call APIs.

In short: if you have a large site, an enterprise budget, and SEO challenges that require understanding the entire website as a system, Lumar is built for exactly that.

6. When to Use SEOPeek

SEOPeek is the right choice when you need fast, automated, per-page SEO checks via API:

• You want SEO checks in CI/CD. Add a single curl command to your GitHub Actions, GitLab CI, or Jenkins pipeline. If the SEO score drops below your threshold, the build fails. No browser, no Chromium, no Node.js—just an HTTP request that returns JSON in under 2 seconds.
• You are building a monitoring system. Run SEOPeek against your critical pages on a cron schedule. Store the results. Alert on regressions. The JSON response is designed for machines to parse and store.
• You generate client reports. Agencies and freelancers building custom SEO dashboards can pull audit data from SEOPeek’s API instead of paying $500+ for an enterprise crawler they only use for on-page checks.
• You need speed. Lumar crawls take minutes to hours. SEOPeek returns results in under 2 seconds. For real-time checks during deployments or pull request previews, speed is non-negotiable.
• Your budget is tight. At $0–$29/month, SEOPeek costs a fraction of any enterprise SEO crawler. Solo developers, small startups, and side projects get professional-grade SEO auditing without enterprise pricing.
• You do not need full-site analysis. If your site has 50 pages and you just want to make sure each one has proper title tags, meta descriptions, and structured data, a $500/month enterprise crawler is extreme overkill.

7. Using Both Together

For enterprise teams, the most effective setup uses both tools in complementary roles:

• Lumar for deep analysis. Run weekly or monthly full-site crawls to catch architectural issues, internal linking problems, crawl budget waste, hreflang errors, and site-wide regressions. This is your strategic intelligence layer.
• SEOPeek for real-time monitoring. Run on every deploy to catch on-page SEO regressions before they hit production. Monitor your top 100 pages daily via API. Gate pull requests on SEO score. Feed audit data into Slack alerts or internal dashboards. This is your operational quality assurance layer.

The workflow: your SEO team uses Lumar to discover that 200 product pages are missing structured data. Your engineering team fixes the structured data templates. SEOPeek runs in CI/CD on every subsequent deploy to make sure nobody accidentally removes that structured data in the next sprint. Lumar tells you what to fix. SEOPeek makes sure it stays fixed.

This combination gives you enterprise-grade site intelligence and real-time deploy-level quality assurance. SEOPeek at $29/month adds negligible cost to a Lumar subscription, but prevents the regressions that Lumar would only catch on the next scheduled crawl.

8. SEOPeek API Code Example

Here is what it looks like to call the SEOPeek API, parse the response, and gate a deployment on the results.

Basic audit (curl)

curl "https://us-central1-todd-agent-prod.cloudfunctions.net/seopeekApi/api/v1/audit?url=https://example.com"

GitHub Actions: SEO gate on every deploy

# .github/workflows/seo-check.yml
name: SEO Audit
on: [push]
jobs:
  audit:
    runs-on: ubuntu-latest
    steps:
      - name: Audit production URL
        run: |
          RESULT=$(curl -s "https://us-central1-todd-agent-prod.cloudfunctions.net/seopeekApi/api/v1/audit?url=https://your-site.com")
          SCORE=$(echo $RESULT | jq '.score')
          GRADE=$(echo $RESULT | jq -r '.grade')
          echo "SEO Score: $SCORE ($GRADE)"
          if [ "$SCORE" -lt 75 ]; then
            echo "FAIL: SEO score $SCORE is below minimum 75"
            echo $RESULT | jq '.checks | to_entries[] | select(.value.pass == false) | "\(.key): \(.value.message)"'
            exit 1
          fi

JSON response example

{
  "url": "https://example.com",
  "score": 82,
  "grade": "B",
  "checks": {
    "title": {"pass": true, "message": "Title tag exists and is 52 characters"},
    "meta_description": {"pass": true, "message": "Meta description is 148 characters"},
    "h1": {"pass": true, "message": "Single H1 tag found"},
    "og_tags": {"pass": false, "message": "Missing og:image tag"},
    "canonical": {"pass": true, "message": "Canonical URL is set"},
    "structured_data": {"pass": false, "message": "No JSON-LD schema detected"},
    "image_alt": {"pass": true, "message": "All 8 images have alt text"},
    ...
  }
}

9. API Design Comparison

If you are a developer evaluating both tools for programmatic access, the API design philosophies are worth understanding.

SEOPeek API

SEOPeek is API-first by design. The API is not an add-on to a web dashboard—it is the primary product. This means:

• Single endpoint: one URL, one query parameter (url), instant JSON response
• Synchronous: the response includes the full audit result. No polling, no job IDs, no webhooks needed.
• Stateless: every request is independent. No projects, no crawl configurations, no sessions to manage.
• Fast: under 2 seconds per audit. Designed for real-time use in CI/CD and monitoring.
• Free to start: no API key required for the free tier. Point your HTTP client at the endpoint and get results immediately.

Lumar API

Lumar’s API is designed to extract results from crawls, not to perform real-time audits. The workflow is:

• Start a crawl via API (specifying the project and configuration)
• Poll for completion—crawls take minutes to hours depending on site size
• Query results using GraphQL to extract specific metrics, issues, and page-level data
• Authentication via API tokens tied to your enterprise account

Lumar’s API is powerful for extracting and integrating crawl data into BI tools, custom dashboards, and automated reports. But it is not designed for the use case that SEOPeek targets: instant, synchronous, per-URL auditing. These are different API paradigms for different problems.

The Depth vs. Speed Trade-off

Every SEO tool makes a fundamental trade-off between depth and speed. Lumar maximizes depth: it will tell you things about your site that no other tool can, by crawling every page, following every link, rendering JavaScript, and correlating with server logs. The cost is time (hours) and money ($500+/month).

SEOPeek maximizes speed: it tells you the 20 most important things about a single page in under 2 seconds for $9/month. The cost is depth—it will not tell you about your site’s architecture, internal link flow, or crawl budget efficiency.

Neither trade-off is wrong. They serve different needs at different stages of SEO maturity. A startup with 20 pages needs SEOPeek. An enterprise with 2 million pages needs Lumar. A company somewhere in between might need both.

Frequently Asked Questions

Is SEOPeek a replacement for Lumar (DeepCrawl)?

No. Lumar is an enterprise-grade website crawler that analyzes entire sites for technical SEO issues across hundreds of checks, including site architecture, crawl budget, JavaScript rendering, and hreflang validation. SEOPeek replaces only the on-page SEO audit portion with a faster, cheaper, API-first alternative that works on individual URLs. For teams that only need on-page checks, SEOPeek eliminates the need for an enterprise crawler. For teams that need full-site analysis, Lumar remains essential.

How much cheaper is SEOPeek compared to Lumar?

SEOPeek Pro costs $29/month for 10,000 audits. Lumar plans start around $500/month. For on-page SEO checks via API, SEOPeek is roughly 17x cheaper at the entry level. The gap widens at higher Lumar tiers.

Can I use SEOPeek in CI/CD pipelines?

Yes, and this is a primary use case. Add a curl command to your build pipeline, check the JSON response for your minimum score threshold, and fail the build if on-page SEO has regressed. Lumar is designed for scheduled full-site crawls, not per-deploy checks.

Does SEOPeek crawl entire websites like Lumar?

No. SEOPeek audits one URL per request with a 1–2 second response time. Lumar crawls your entire site—thousands or millions of pages—following links and analyzing site structure. If you need full-site crawling, Lumar is the right tool. If you need instant per-page audits, SEOPeek is the right tool.

Can I use SEOPeek and Lumar together?

Absolutely. Use Lumar for weekly or monthly full-site crawls to catch architectural and technical issues. Use SEOPeek on every deploy to catch on-page regressions in real time. Lumar discovers what needs fixing. SEOPeek makes sure fixes stay in place. They complement each other at different timescales and depths.