JetOctopus vs WebPageTest in 2026: full-site crawl and log platform vs single-page performance diagnostics
JetOctopus watches an entire site's crawl, log, and indexation health on an ongoing basis. WebPageTest tests one URL at a time and hands you the deepest waterfall and filmstrip data available anywhere, free.
JetOctopus
WebPageTest- JetOctopus crawls and monitors an entire site continuously with no page-by-page manual testing required. WebPageTest tests one URL per run.
- WebPageTest's core diagnostic tool is free with no account required. JetOctopus starts at 293 EUR per month for its base 500K crawl page plan.
- JetOctopus ingests server logs to show real Googlebot and AI bot (GPTBot, ClaudeBot, PerplexityBot) crawl behavior. WebPageTest has no log analysis capability at all.
- WebPageTest tests from real browsers across 30-plus global locations with full filmstrip and waterfall detail. JetOctopus does not offer geographic performance testing or filmstrip analysis.
- JetOctopus includes Google Search Console integration holding 16+ months of ranking and traffic history. WebPageTest has no GSC integration or historical ranking data.
- WebPageTest's paid Pro API tier starts at $9.89 per month for priority queuing and programmatic access; continuous monitoring still requires pairing it with a dedicated tool.
JetOctopus and WebPageTest sit in the same "Technical SEO" category but answer almost entirely different questions. JetOctopus is a site-wide platform: it crawls every page, ingests your server logs to see what Googlebot and AI bots actually did, and tracks Google Search Console history over time, all for one subscription with no user or project caps. WebPageTest is a single-page performance diagnostic tool: point it at one URL, and it runs a real browser test from one of 30-plus global locations, returning a full waterfall, filmstrip, and raw HAR data that goes deeper than any commercial rank-and-crawl tool bothers to show. One is built to monitor a whole site continuously; the other is built to explain, in forensic detail, why one specific page is slow. Teams doing serious technical SEO on a large site often need both, just for different jobs.
The tools at a glance
JetOctopus
SEO crawler and log analyzer for large sites that combines crawl data, server logs, GSC, and GA4 into one platform with no seat or project limits
JetOctopus is built to answer questions at the site level, not the page level: which sections of a million-page catalog are bots actually visiting, where is crawl budget being wasted, and which pages have gone dark in Google Search Console. The JavaScript crawler runs at up to 250 pages per second, and the log analyzer validates real Googlebot and Bingbot traffic against more than 40 bots total, including GPTBot, ClaudeBot, and PerplexityBot.
What JetOctopus does not do is single-page performance forensics. There is no filmstrip, no per-request waterfall, and no ability to run a test from a specific city to see how a page loads for users in a particular region. Its coverage of speed is aggregate: Core Web Vitals tracked across the site as part of the broader crawl and alert system, not a deep-dive diagnostic for one URL.
The pricing model is page-volume based with no seat limits, which suits agencies and enterprise teams running the platform across many people and client projects. The trade-off is that the total monthly cost depends on how many crawl pages, log lines, and GSC properties get added on top of the base 500K plan, and that math is in EUR rather than a flat per-seat number.
| Feature | 500K Plan 293 EUR/month (billed annually) | Add-on: Crawl from 138 EUR/month | Add-on: Logs from 86 EUR/month | Add-on: GSC from 43 EUR/month |
|---|---|---|---|---|
| Crawl pages included | 500K (or 250K JS) | Up to 10M+ | N/A | N/A |
| Log lines included | 2M | N/A | Up to 50M | N/A |
| User limits | None | None | None | None |
| Project limits | None | None | None | None |
| AI bot tracking | ✓ | ✓ | ✓ | ✓ |
WebPageTest
The open-source gold standard for deep web performance diagnostics, trusted by engineers at Google, Mozilla, and every serious web team.
WebPageTest does one job and does it deeper than any competitor: it tests a single URL through a real browser and shows you exactly why it is slow. The waterfall breaks down every request with DNS, connection, SSL, and response timing; the filmstrip shows frame-by-frame what a user sees as the page renders; and the whole thing can run from more than 30 global locations to catch region-specific issues a single-location test would miss.
The free public instance requires no account and no payment, which is unusual for a tool this capable. Lighthouse audits run alongside the waterfall data for SEO and accessibility findings, and No-Code Experiments let you test the impact of a hypothetical change, like removing a third-party script, before an engineer touches the codebase.
What it does not do is site-wide crawling or ongoing monitoring on its own. Each test is a single URL, single run. Continuous tracking across many pages requires the paid Pro API tier for programmatic access, and even then WebPageTest is not a crawler; teams that need to watch trend lines across an entire site typically pair it with a dedicated monitoring tool for the dashboard layer.
| Feature | Free Free | Pro API (Starter) $9.89/month |
|---|---|---|
| On-demand tests | Shared queue | Priority access |
| Global test locations | 30+ | 30+ |
| Filmstrip and video replay | Yes | Yes |
| API access | No | Yes |
| Continuous monitoring | No | Yes |
Head-to-head feature comparison
| Feature | JetOctopus | WebPageTest |
|---|---|---|
| Scope of testing | Whole site | Single URL per test |
| Server log analysis | Yes | No |
| Site-wide crawling | Yes (up to 250 pages/sec) | No |
| Real browser testing from global locations | No | Yes (30+ locations) |
| Waterfall and filmstrip diagnostics | No | Yes |
| Google Search Console integration | Yes (16+ months) | No |
| AI bot tracking | Yes (40+ bots) | No |
| Continuous monitoring dashboard | Yes | Pro API only |
| Free tier available | No | Yes |
| Open source | No | Yes |
| Starting price | 293 EUR/mo | Free |
Which should you choose?
JetOctopusWebPageTestWebPageTestJetOctopusWebPageTestJetOctopusWebPageTestJetOctopus and WebPageTest are not really substitutes for each other. JetOctopus tells you what is happening across an entire site over time: crawl coverage, log-verified bot behavior, indexation trends. WebPageTest tells you, in extreme technical detail, why one page loads the way it does right now. A technical SEO team working a large site migration would reasonably use JetOctopus to confirm the new site is being crawled and indexed correctly, and WebPageTest to prove the new templates actually load faster than the old ones, filmstrip and waterfall included.
Bottom line
If the job is watching an entire site's crawl, log, and indexation health over time, JetOctopus is built for that and WebPageTest is not designed to do it at all. If the job is explaining exactly why a single page is slow, or proving a performance fix worked with real waterfall and filmstrip evidence, WebPageTest is free and more capable than anything JetOctopus offers for that use case. Most technical SEO teams working on large, complex sites end up needing both: JetOctopus for the ongoing site-wide picture, WebPageTest for the page-level forensics when something specific needs fixing.
Frequently asked questions
Should I use JetOctopus or WebPageTest to diagnose Core Web Vitals problems?
Use WebPageTest for diagnosing exactly why a specific page fails Core Web Vitals thresholds, since its waterfall and filmstrip show which requests and render events cause the LCP or CLS problem. JetOctopus tracks Core Web Vitals as part of its site-wide crawl and alerting, which is better for spotting which pages across a large site have regressed, but it does not provide the request-level forensic detail WebPageTest does for fixing one page.
Is WebPageTest a replacement for a technical SEO crawler like JetOctopus?
No. WebPageTest tests one URL at a time through a real browser and has no crawling, log analysis, or Google Search Console integration. JetOctopus crawls an entire site, ingests server logs, and tracks GSC history over time. They cover different parts of a technical SEO workflow rather than competing for the same job.
Does JetOctopus offer filmstrip or waterfall performance analysis like WebPageTest?
No, JetOctopus does not provide filmstrip or per-request waterfall diagnostics. It tracks Core Web Vitals in aggregate across a crawled site as part of its broader monitoring, but for the frame-by-frame rendering detail WebPageTest provides on a single page, WebPageTest remains the more capable tool.
Is WebPageTest actually free to use for a full site audit?
The core public instance of WebPageTest is free with no account required, and it can be run against any number of individual URLs at no cost. It is not a site-wide crawler though, so auditing a full site means running it URL by URL, or using the paid Pro API for programmatic automation at $9.89 per month.
Can JetOctopus test page speed from different global locations the way WebPageTest does?
No. JetOctopus does not offer geographic performance testing from multiple global locations. WebPageTest runs tests from more than 30 locations worldwide through real browser instances, which is useful for diagnosing region-specific performance issues that a single-location test would miss entirely.
Which tool is better for tracking AI crawler behavior, like GPTBot or ClaudeBot, on my site?
JetOctopus is the only one of the two with this capability. Its log analyzer tracks more than 40 bots including GPTBot, ClaudeBot, and PerplexityBot, comparing their crawl behavior against Googlebot. WebPageTest has no log analysis feature and cannot see historical bot traffic at all.