PageSpeedPlus is a speed monitoring suite with cache warming as one feature. warmup.rocks is a dedicated cache warmer built around one job. Depending on what you need, the right answer might even be "both".
Facts checked against pagespeedplus.com in July 2026. Spotted something outdated? Tell us and we'll fix it.
PageSpeedPlus watches your Lighthouse scores and Web Vitals and alerts you when they drop. Cache warming attacks one specific cause of slow pages: the cold edge cache.
PageSpeed Insights tracking, real-user monitoring, full-site scans, alerts and a WordPress plugin — plus sitemap-based cache warming for monitored URLs.
Every warming request enters the CDN in a different region, fills the edge location it lands in, and its cache status is verified — pass after pass, around the clock.
This table compares the cache-warming side of both products. For Lighthouse monitoring, RUM and score alerts, PageSpeedPlus simply does things we don't do.
| Capability | warmup.rocks | PageSpeedPlus |
|---|---|---|
| Primary focus | CDN cache warming — it's the whole product | PageSpeed / Web Vitals monitoring; warming is one feature |
| Multi-region warmingFills the per-location edge caches | 42 countries, 90+ edge locations per pass | "Multi region" warming; region count not published |
| Cache verificationConfirms each response was actually a HIT | Records cf-cache-status & equivalents per URL, per run |
Not documented publicly |
| Per-location analyticsHit ratio per CDN data center | Hit ratio & response time per colo | Load times from up to 11 locations, not per-colo cache data |
| URLs warmedCoverage per warming pass | 100–1,000 pages per run, every 1–3 h | Monitored URLs (25–500 by plan); full site on Pro |
| Deploy hooks & CIRe-warm right after a deploy purges the cache | Webhook + official GitHub Action | API access on Standard+ |
| Mobile cache variantSecond warm pass with a mobile user agent | On Boulder & Summit plans | Not advertised for warming (tests run mobile + desktop) |
| Lighthouse / Web Vitals monitoring | Not our job — use our free speed test for spot checks | Core product: PSI tracking, RUM, alerts, history |
| Free trial | 7 days, full features | 14 days |
| Entry price | $15/mo — warming every 3 h, 100 pages/run | €20/mo — daily checks, warming for 25 monitored URLs |
PageSpeedPlus facts from pagespeedplus.com (July 2026). Both products evolve — always verify against their current site.
Edge caches are best-effort storage: objects get evicted under cache pressure long before their TTL expires. In our 408,000-request measurement, some colos evicted up to 9.4% of warmed objects between hourly passes. Warming a few monitored URLs once a day keeps a fraction of your site warm — a full pass every 1–3 hours keeps all of it warm.
cold caches are your actual problem: international traffic, purge-heavy deploys, a big catalog. You want every edge location warm and verified, on a schedule, with deploy hooks — not warming as a side feature.
your main need is watching Lighthouse scores and Web Vitals across many pages, with alerts, history and client reports — and light warming of your most important URLs is enough.
you're an agency that reports scores to clients and runs global sites. The tools don't overlap much: one measures, the other keeps the edge hot. They coexist happily.
It improves the field data your real users generate: TTFB drops sharply when a page is served from a warm edge instead of your origin, which feeds into LCP. Lab tests (Lighthouse) also benefit when the tested URL happens to be warm. Warming won't fix render-blocking JavaScript or oversized images — monitoring tools help you find those.
If those 25–500 URLs are all that matters, yes. But visitors and crawlers don't stick to your top pages: category pages, filters, older articles are exactly the long-tail pages that go cold first. A full sitemap pass keeps the long tail warm too — that's also what Googlebot's crawl-time metrics reward.
Yes — our cache checker and multi-location speed test are free and need no signup. They show your real cache statuses and speeds from several continents in about a minute.
We wrote it, so read it critically — but every claim about PageSpeedPlus comes from their public website and pricing as of July 2026, we credit them for what they do well, and we say "not documented" rather than "impossible" where their site is silent. Corrections welcome via contact.
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