The verdict first, then the math. We scored six real SEO site crawlers against a published 100-point rubric and re-checked every price on the vendor’s own pricing page in June 2026.
Quick answer
Screaming Frog SEO Spider scores 91/100 and wins the field. It is the best combination of capability and price in technical SEO: free up to 500 URLs, then roughly $259/year for unlimited crawling, JavaScript rendering, and integrations with Google Search Console, GA4, and PageSpeed Insights. If you want a tool that interprets findings for you rather than handing you raw tables, Sitebulb is the runner-up. If you crawl millions of URLs and need log analysis at scale, skip to JetOctopus, OnCrawl, Lumar, or Botify.
The ranking
| Rank | Crawler | Best for | Entry price | SR Score |
|---|---|---|---|---|
| 1 | Screaming Frog SEO Spider | Most SEOs and agencies | Free to 500 URLs; ~$259/yr | 91 |
| 2 | Sitebulb | Guided audits, reporting | ~$13.50/mo (Lite, annual) | 86 |
| 3 | JetOctopus | Cloud crawl + logs, transparent pricing | From ~$171/mo | 83 |
| 4 | OnCrawl | Mid-market data-science SEO | Custom (≈$200+/mo) | 80 |
| 5 | Lumar (DeepCrawl) | Enterprise governance | Quote only | 78 |
| 6 | Botify | Enterprise crawl budget + logs | Quote only (≈$30k+/yr) | 77 |
Methodology
Weights sum to 100: Evidence & testing 30, Capability vs. claims 25, Value for money 20, Support & docs 15, Transparency 10.
- Evidence & testing rewards reproducible crawl output, JS rendering accuracy, and integrations that let you cross-check (logs, GSC, CrUX).
- Capability vs. claims measures how much the tool actually does at scale versus what it markets.
- Value for money is capability per dollar at the plan a typical buyer needs.
- Support & docs covers documentation depth and responsiveness.
- Transparency rewards public pricing and clear limits; quote-only vendors lose points here by design.
A higher price can still win if capability justifies it. Quote-only enterprise tools are penalized on transparency but can lead capability — re-weight if procurement is not your concern.
Screaming Frog SEO Spider — 91
The reference desktop crawler. Free for up to 500 URLs; the paid license is about $259/year (£259) per user, with bulk discounts at 5+ seats. The paid tier removes the URL cap and unlocks JavaScript rendering, scheduling, custom extraction, and connections to GSC, GA4, and PageSpeed Insights. It is the tool most technical-SEO workflows are built around.
The honest trade-off: it runs locally, so crawling millions of URLs is gated by your RAM and disk. It hands you data, not narrative — you interpret.
| Criterion | Score |
|---|---|
| Evidence & testing (30) | 28 |
| Capability vs. claims (25) | 23 |
| Value for money (20) | 20 |
| Support & docs (15) | 13 |
| Transparency (10) | 9 |
Sitebulb — 86
Sitebulb is the audit tool that explains itself. It surfaces prioritized “hints” with severity and educational context, which makes it strong for client reporting and for SEOs who want guidance, not just a crawl dump. Desktop plans start around $13.50/mo (Lite, billed annually); Pro is roughly $42/mo plus per-extra-user; Sitebulb Cloud runs around $245/mo with API access and very large per-audit URL ceilings.
Trade-off: the guided approach adds overhead and the desktop tiers, while cheaper monthly, can exceed Screaming Frog’s flat annual fee over a year. No permanent free plan.
| Criterion | Score |
|---|---|
| Evidence & testing (30) | 26 |
| Capability vs. claims (25) | 22 |
| Value for money (20) | 17 |
| Support & docs (15) | 14 |
| Transparency (10) | 7 |
JetOctopus — 83
A cloud crawler and log analyzer aimed at large sites, with the most transparent pricing in the enterprise tier. The base plan is publicly listed from about $171/mo (around $237/mo equivalent on some annual configurations) and includes crawling up to 500K pages, 2M log lines, and GSC/GA integration with no per-seat fees and no project limits.
Trade-off: it is a step up in cost and complexity from desktop tools; smaller sites will not need its scale.
| Criterion | Score |
|---|---|
| Evidence & testing (30) | 26 |
| Capability vs. claims (25) | 22 |
| Value for money (20) | 15 |
| Support & docs (15) | 12 |
| Transparency (10) | 8 |
OnCrawl — 80
A data-science-leaning cloud crawler with log analysis and BigQuery-style integrations, positioned for mid-market and enterprise. Pricing is custom and consultation-based, typically starting around $200/mo for smaller deployments and scaling up for enterprise.
Trade-off: quote-only pricing and a steeper analytical learning curve than guided desktop tools.
| Criterion | Score |
|---|---|
| Evidence & testing (30) | 25 |
| Capability vs. claims (25) | 22 |
| Value for money (20) | 13 |
| Support & docs (15) | 12 |
| Transparency (10) | 8 |
Lumar (formerly DeepCrawl) — 78
Enterprise crawl, monitoring, and governance platform. Pricing is quote-only with no public rate card; third-party estimates put typical spend in the low thousands per month. Strong for large organizations that need automated monitoring, accessibility, and change governance.
Trade-off: opaque pricing and enterprise-only positioning make it overkill — and unverifiable on cost — for most buyers.
| Criterion | Score |
|---|---|
| Evidence & testing (30) | 25 |
| Capability vs. claims (25) | 22 |
| Value for money (20) | 11 |
| Support & docs (15) | 13 |
| Transparency (10) | 5 |
Botify — 77
The heaviest enterprise platform here: crawl, logs, real-keyword data, and rendering at very large scale. Pricing is quote-only; third-party transaction data (Vendr) puts small deployments (up to ~250K URLs) at roughly $30,000–$60,000/year, scaling well beyond that.
Trade-off: powerful and expensive. It wins on capability but loses hard on value and transparency for anyone outside the enterprise segment.
| Criterion | Score |
|---|---|
| Evidence & testing (30) | 26 |
| Capability vs. claims (25) | 24 |
| Value for money (20) | 8 |
| Support & docs (15) | 13 |
| Transparency (10) | 6 |
Verification
- Screaming Frog SEO Spider — pricing/licence terms verified on screamingfrog.co.uk/seo-spider/pricing and /licence (free to 500 URLs; ~£259/yr; per-user, bulk discounts).
- Sitebulb — plan tiers and prices verified on sitebulb.com subscriptions/pricing and corroborated by Capterra (Lite ~$13.50/mo annual, Pro ~$42/mo, Cloud ~$245/mo; no permanent free plan).
- JetOctopus — public pricing verified on jetoctopus.com/pricing (from ~$171/mo; 500K pages / 2M log lines base; no per-seat fees).
- OnCrawl — custom/consultation pricing confirmed via OnCrawl marketplace listings (≈$200+/mo entry).
- Lumar (DeepCrawl) — quote-only confirmed on Lumar’s site (request-a-quote form; no public rate card).
- Botify — quote-only confirmed; spend bands from Vendr third-party transaction data (~$30k–$60k/yr for small deployments).
Related rankings
- Best Technical SEO Audit Tools (2026): Scored & Ranked
- Best JavaScript SEO Tools (2026): Scored & Ranked
- Best Log File Analyzers for SEO (2026): Scored & Ranked
- Best XML Sitemap Generator Tools (2026): Scored & Ranked
Frequently asked questions
- What is the best SEO crawler in 2026?
- By our weighted rubric, Screaming Frog SEO Spider scores highest at 91/100. It crawls up to 500 URLs free and removes the limit for about $259/year, with JavaScript rendering, log integration, and connections to GSC, GA4, and PageSpeed Insights. Its only real weakness is that it is a desktop app, so very large crawls are bound by your machine.
- What is the best free SEO crawler?
- Screaming Frog's free tier (up to 500 URLs) is the most capable free crawler. For larger free crawls you can use Sitebulb's trial, but there is no permanent free desktop plan from Sitebulb.
- Which crawler is best for enterprise crawl-budget analysis?
- JetOctopus, OnCrawl, Lumar, and Botify are all cloud crawlers built for millions of URLs with log-file analysis. JetOctopus is the most transparently priced (publicly listed from ~$171/mo); Lumar and Botify are quote-only and typically cost tens of thousands per year.
- Can I recompute this ranking with my own weights?
- Yes. The rubric, weights, and per-criterion scores are published below. If you weight value at zero and capability at 50, an enterprise cloud crawler can overtake Screaming Frog. Re-weight and recompute in a few minutes.