Screaming Frog SEO Spider vs SEOTesting
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
The short answer
Editorial assessmentScreaming Frog SEO Spider compared with SEOTesting
Both are cheap tools that make you more rigorous rather than more informed. Screaming Frog establishes the technical state of a site; SEOTesting establishes whether a change you made actually caused a result, using controlled tests on Search Console data. Neither replaces the other, and together they cost less per year than two months of a mid-tier hosted suite.
Choose Screaming Frog SEO Spider if
Technical SEOs, developers, agencies, and anyone responsible for a site's technical health who wants a forensic crawler with a flat annual cost and no metering, alongside whatever hosted SEO platform they already pay for.
Choose SEOTesting if
SEO practitioners, consultants, and in-house teams who already produce content and now need evidence, particularly anyone who has to defend an SEO program to a CFO or a client and is tired of pointing at a line chart and asserting causation.
Side by side
13 attributes| Attribute | Screaming Frog SEO Spider | SEOTesting |
|---|---|---|
| Category | SEO | SEO |
| Starting price | Free up to 500 URLs, then $279 per licence per year (free plan available) | $50 per month (Single Site) (14 days trial) |
| Pricing model | Flat annual per-licence software fee with unlimited crawling, no credits and no metered index, plus a separately licensed Log File Analyser and progressive volume discounts. | Flat monthly tiers priced purely on the number of websites, with unlimited users on every plan and month-to-month billing. |
| Free plan | The free version crawls up to 500 URLs and retains most core features including broken link detection, metadata analysis, XML sitemap generation, and Google Analytics and Search Console integration. | No |
| Free trial | No | 14 days, fully functional, no credit card required, up to 30 sites during the trial |
| Best for | Technical SEOs, developers, agencies, and anyone responsible for a site's technical health who wants a forensic crawler with a flat annual cost and no metering, alongside whatever hosted SEO platform they already pay for. | SEO practitioners, consultants, and in-house teams who already produce content and now need evidence, particularly anyone who has to defend an SEO program to a CFO or a client and is tired of pointing at a line chart and asserting causation. |
| Setup time | Ten minutes to install and run a first crawl. Configuring it properly for a large or JavaScript-heavy site, including rendering, storage mode, exclusions, and API connections, takes a couple of hours the first time and is then reusable as a saved configuration. | Under thirty minutes to connect Google Search Console and see reports. Meaningful testing takes longer to start because someone has to design a valid experiment, define page groups, and agree not to change anything else during the window. |
| Learning curve | Steep for a non-specialist and shallow for anyone who already understands technical SEO. The interface presents raw data rather than recommendations, which is exactly what an expert wants and exactly what a marketer without a technical background will find impenetrable. | Low for the reports, moderate for the testing. The interface is straightforward, but interpreting a test result correctly requires understanding what a control group does and does not prove, and that is a skill, not a setting. |
| Platforms | Windows, macOS (Apple Silicon and Intel), Linux (Ubuntu and Fedora), Command line interface | Web app, Chrome extension, Looker Studio connector, API, MCP server |
| Compliance | GDPR (UK company) | UK-registered company (SanityCheck.io Limited); detailed certifications not published |
| Founded | 2010 | 2017 |
| Headquarters | Henley-on-Thames, Oxfordshire, United Kingdom | Bude, Cornwall, UK |
| Ownership | Independent, founder-led and privately held | Independent and bootstrapped, trading as SanityCheck.io Limited; a minority stake was sold to join the TinySeed accelerator |
Strengths and limitations
Screaming Frog SEO Spider
Strengths
- Flat $279 per year with unlimited crawling and no metering anywhere, against hosted crawlers that ration pages per month inside far more expensive subscriptions.
- More than 300 detected issue types with genuinely forensic depth, including canonical, hreflang, directive, and structured data analysis that hosted auditors summarise rather than expose.
- Headless Chromium rendering makes it one of the few tools that will audit a modern JavaScript application honestly.
- Custom extraction with XPath, CSS selectors, and regex turns it into a general-purpose site data extractor, which is why non-SEO teams end up using it too.
Limitations
- It owns no index. No keyword data, no backlink data, no rank tracking, and no competitive research, so it is always a second tool rather than a first one.
- The interface is a dense spreadsheet with no health score and no prioritised action list, which makes it hostile to non-technical users.
- Unlimited crawling is bounded by your own hardware, and large crawls require configuring database storage mode and having the memory and disk to back it.
- No hosted dashboards, no client portal, and no white-label reporting; output is exports and spreadsheets.
SEOTesting
Strengths
- The only tool in this comparison set that establishes causation rather than correlation, through both time-based forecasting and genuine split tests.
- Archives Google Search Console data past the sixteen-month retention limit, which is quietly one of the most valuable things any GSC tool can do.
- Unlimited users on every plan with pricing based solely on site count, so team size never affects the bill.
- The AI features are grounded in observable data (chatbot-referred clicks, prompt patterns, session tests) rather than in scraped model output presented as certainty.
Limitations
- Useless below a traffic threshold; testing requires enough impressions and clicks for a difference to be statistically distinguishable, and the site never tells you what that floor is.
- Not a content tool at all: no editor, no scoring, no keyword database, no backlink data, so it is always an addition to a stack rather than a consolidation of one.
- Rigor demands discipline. The tool cannot stop a team from shipping six changes at once and then reading the result as if it proved something.
- AI coverage measures referred traffic and prompts, not brand mentions or share of voice inside AI answers, so it does not replace a dedicated AI visibility tracker.
Pricing compared
Screaming Frog SEO Spider
Flat annual per-licence software fee with unlimited crawling, no credits and no metered index, plus a separately licensed Log File Analyser and progressive volume discounts.
- Free$0
- SEO Spider licence$279
- SEO Spider volume licensing$265 to $235
- Log File Analyser$139
Screaming Frog is the best value purchase in this entire category, and the comparison is not close because it is not the same kind of purchase. $279 per year buys unlimited crawling forever, against hosted auditors metering 250,000 or 2 million pages per month inside subscriptions costing four to twenty times as much. A ten-person agency licences everyone for $2,490 a year, roughly what one Ahrefs Advanced seat plus its per-user surcharge costs over the same period. The reason the price can be this low is that Screaming Frog owns no index and rents you no data; it sells you a program that runs on your machine. That is also its limitation. You still need a keyword and backlink subscription somewhere, and the correct way to think about this is that the crawler is the cheap part of your stack that should never have been a subscription in the first place.
SEOTesting
Flat monthly tiers priced purely on the number of websites, with unlimited users on every plan and month-to-month billing.
- Single Site$50
- Medium$125
- Large$375
- EnterpriseCustom
At $50 per month for one site, SEOTesting is priced like a niche utility, and per site at the Large tier it drops under $19, which is close to trivial for an agency. The value question is not the price but the fit: it is worth every dollar to a team with enough traffic to run a real test and disciplined enough to change one thing at a time, and worth nothing at all to a site with 300 monthly clicks or a team that ships ten changes in a sprint. The Search Console data archive alone, past Google's sixteen-month window, justifies the entry price for many working SEOs before the testing features are even considered.
Editorial verdict on each
Screaming Frog SEO Spider
Screaming Frog is the tool in this category whose pricing makes the most sense, because it is honest about what it is selling. There is no index to rent, so there is nothing to meter, so a licence costs $279 a year and crawls as much as your laptop can handle. Set that against hosted auditors rationing 250,000 pages a month inside subscriptions costing several times more and the arithmetic barely needs stating. What you get is genuinely forensic: headless Chromium rendering that audits JavaScript applications honestly, custom extraction with XPath and regex, scheduled crawls and command line operation, crawl comparison for demonstrating progress, and in 2026 the option of running AI prompts against your pages using a local model so nothing leaves your network. What you do not get is any data of its own, any dashboard, or any help for a non-technical user. Buy it as the crawler in a stack that already has a keyword and link subscription somewhere else, start with the free 500-URL version, and licence the whole team when you outgrow it.
Read the full Screaming Frog SEO Spider profileSEOTesting
SEOTesting is the most intellectually honest product in this category and the one most likely to change how a team works rather than just what it produces. Everything else here helps you make content; this tells you whether the content did anything. Split testing on a live site, a Search Console archive that outlives Google's own retention, unlimited users at $50 per month, and AI features that measure observable traffic instead of inventing a share-of-voice metric all point at a team more interested in being right than in being impressive. The constraints are equally clear: you need real traffic, real discipline about changing one thing at a time, and another tool to actually produce the content. Add it to the stack. Do not expect it to be the stack.
Read the full SEOTesting profileScreaming Frog SEO Spider profile last reviewed 2026-08-22; SEOTesting last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.