Software Alternatives, Accelerators & Startups

Pattern.css VS warmup.rocks

Compare Pattern.css VS warmup.rocks and see what are their differences

Pattern.css logo Pattern.css

CSS library to fill empty background with beautiful patterns

warmup.rocks logo warmup.rocks

warmup.rocks keeps your CDN cache warm in every edge location worldwide: Cloudflare, Fastly, Akamai, CloudFront and more. Warming from 42 countries, hit-ratio analytics.
Visit Website
  • Pattern.css Landing page
    Landing page //
    2022-11-04
  • warmup.rocks Homepage
    Homepage //
    2026-07-18
  • warmup.rocks Dashboard
    Dashboard //
    2026-07-18

A CDN isn't one cache. It's hundreds of independent ones, and most of them are cold.

Cloudflare alone runs 300+ data centers, and each keeps its own cache. A page cached in Frankfurt is still ice cold in Tokyo, so the first visitor per region pays the full origin round trip. In our measurement of 408,000 CDN requests, a cache miss was 3.5x slower than a hit at the median.

warmup.rocks fixes that by requesting your pages from 42 countries on 6 continents on a schedule. Each request enters the CDN network in a different region and fills the edge location it lands in: 90+ locations per warming pass.

What makes it different: verification. We record the cache status (cf-cache-status, x-cache and equivalents) of every single response and show you the hit ratio per edge location, per run. Warming without verification is hoping.

Features

  • Sitemap auto-discovery, nested sitemap indexes resolved before every run
  • CDN auto-detection: Cloudflare, Fastly, CloudFront, Akamai, bunny.net, CDN77
  • Scheduled runs every 1-3 hours depending on plan
  • Deploy hooks + official GitHub Action: re-warm right after your CI purges the cache
  • Mobile cache variant (second pass with a mobile user agent)
  • Email alerts when a WAF rule blocks warming runs

Free tools, no signup: multi-location cache checker and website speed test.

Nothing to install: no plugin, no DNS change. 7-day free trial, plans from $15/month.

Pattern.css

Website
github.com
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

warmup.rocks

$ Details
paid Free Trial $15 / Monthly (1 project, 100 pages per run, Warm every 3 hours)
Platforms
Web Wordpress WooCommerce Wix ReactJS
Release Date
2026 July
Startup details
Country
Switzerland
Founder(s)
Kevin Kyburz
Employees
1 - 9

Pattern.css features and specs

  • Lightweight
    Pattern.css is a CSS-only library, which means it doesn't require any JavaScript, making it lightweight and easy to integrate without increasing page load times significantly.
  • Easy to Use
    A simple and straightforward way to add background patterns to your web projects, requiring minimal effort and configuration.
  • Customizable
    The patterns provided by the library can be easily customized by modifying the CSS, allowing for a wide range of design possibilities.
  • No Dependencies
    Does not require any external dependencies or frameworks, making it easier to maintain and integrate.
  • Open Source
    Being an open-source project, it allows developers to contribute, review the code, and potentially tailor the patterns to their specific needs.

Possible disadvantages of Pattern.css

  • Limited Patterns
    The library offers a limited set of predefined patterns, which may not fulfill every design requirement or aesthetic.
  • Browser Compatibility
    While CSS is generally well-supported, certain complex patterns or CSS features used might not be fully compatible with all older browsers.
  • Lack of Updates
    Depending on the frequency of updates and community involvement, the library might not receive timely bug fixes or enhancements.
  • Learning Curve for Customization
    Although patterns can be customized, users may need a good grasp of CSS to effectively modify the existing patterns or create new ones.

warmup.rocks features and specs

  • Free Resource
    Warmup.rocks offers a collection of button hover effects and micro-interactions completely free of charge, making it accessible to developers and designers of all budgets.
  • Copy-Paste Code
    The site provides ready-to-use CSS and HTML code snippets that can be easily copied and implemented directly into projects, saving development time.
  • Visual Preview
    Users can see live previews of each animation effect before deciding to use it, allowing for quick visual assessment without needing to test code first.
  • Variety of Effects
    The collection includes numerous different button animation styles, giving developers multiple creative options to enhance user interface interactivity.
  • Lightweight Implementation
    The animations are typically built with pure CSS or minimal JavaScript, making them lightweight and easy to integrate without heavy dependencies.

Category Popularity

0-100% (relative to Pattern.css and warmup.rocks)
Design Tools
100 100%
0% 0
CDN
0 0%
100% 100
Productivity
100 100%
0% 0
Web Cache
0 0%
100% 100

Questions & Answers

As answered by people managing Pattern.css and warmup.rocks.

Who are some of the biggest customers of your product?

warmup.rocks's answer:

  • this:matters GmbH (the Swiss web agency behind the product, running client sites through it)

What makes your product unique?

warmup.rocks's answer:

Most cache warmers run from one server, so they only warm the one CDN edge location that server happens to hit. CDNs like Cloudflare cache per data center, 300+ of them, and a HIT in Frankfurt says nothing about Singapore.

warmup.rocks is different:

  • Warms from 42 countries on 6 continents, so the cache gets filled where your visitors actually are
  • Verifies every response (cf-cache-status, x-cache) instead of just firing requests and hoping
  • Shows hit ratio per edge location, so you see whether warming actually works
  • Nothing to install: no plugin, no script tag, no DNS change

Why should a person choose your product over its competitors?

warmup.rocks's answer:

Three reasons:

  • Geography. Competitors warm from a single region. We warm from 42 countries, which is the whole point of a CDN cache.
  • Verification. We read the cache status header of every single response and report the actual hit ratio per location, so you see whether warming works instead of taking it on faith.
  • Deploy integration. A deploy hook or our GitHub Action re-warms the cache right after you ship, which is exactly when it's coldest.

Plans start at $15/month with a 7-day free trial.

How would you describe the primary audience of your product?

warmup.rocks's answer:

Developers, agencies and store owners who run sites behind a CDN (Cloudflare, Fastly, CloudFront, Akamai, bunny.net) and serve visitors in more than one region. Typical cases:

  • WordPress/WooCommerce sites where preload plugins stop at the server cache
  • Shopify and Magento stores with a long product tail that never stays warm on its own
  • Anyone whose deploys purge the edge cache and leave the first visitor per location with a slow load

What's the story behind your product?

warmup.rocks's answer:

I run a web agency in Switzerland, and for years I believed our sites were fast because we put them behind Cloudflare and saw HIT in the headers. Then I measured from other continents: pages that loaded in milliseconds from Zurich took multiple seconds from Tokyo or São Paulo, because each edge location keeps its own cache and most of them were cold.

I built a warmer for our own client sites first, then measured 408,000 CDN requests and found a miss is 3.5× slower than a hit at the median. That data convinced me this should be a product.

Which are the primary technologies used for building your product?

warmup.rocks's answer:

  • Node.js + TypeScript with Hono as the web framework
  • SQLite for storage
  • Astro for the public site, vanilla JavaScript for the dashboard
  • Warming requests go through dedicated datacenter proxies in 42 countries

The whole thing runs on a plain VPS behind Cloudflare, which keeps it fast and cheap without a pile of infrastructure.

User comments

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What are some alternatives?

When comparing Pattern.css and warmup.rocks, you can also consider the following products

Hero Patterns - A collection of repeatable SVG background patterns

Cache Status - Cache Status is an easy cache status and management tool located right in your address-bar.

MagicPattern - The best design toolbox with 10+ tools for anyone

Cache Enabler - A lightweight caching plugin that creates static HTML files and stores them on your web server.

CSS Background Patterns - Free customizable CSS patterns that actually look cool & beautiful

CacheFly - The Fastest Global Throughput CDN