SQLBolt
SQLZOO
The Odin Project
SQL School
LiveEdu.tv
Codecademy
Platzi
DB Browser for SQLite
warmup.rocks
Cache Status
Cache Enabler
CacheFly
WP Super Cache
WP Rocket
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
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.
SQLBolt warmup.rocksNo features have been listed yet.
SQLBolt is recommended for beginners who are new to SQL or those with limited experience who need a refresher on basic concepts. It is also useful for anyone who prefers learning through interactive and practical exercises rather than purely theoretical content.
No warmup.rocks videos yet. You could help us improve this page by suggesting one.
warmup.rocks's answer:
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:
warmup.rocks's answer:
Three reasons:
Plans start at $15/month with a 7-day free trial.
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:
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 Sรฃo 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 3.5ร slower than a hit at the median. That data convinced me this should be a product.
warmup.rocks's answer:
The whole thing runs on a plain VPS behind Cloudflare, which keeps it fast and cheap without a pile of infrastructure.
Based on our record, SQLBolt seems to be more popular. It has been mentiond 124 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I hope this helps you with interview prep as it does to me. I find https://sqlbolt.com/ super helpful if you want to learn SQL queries in depth. Thanks! - Source: dev.to / 5 months ago
SQLBolt - Introduction to SQL - Browser-based interactive tutorial with progressive lessons and immediate practice exercises, offering a quick and practical way to learn SQL fundamentals directly in your browser without setup, though it lacks formal certification and may not cover advanced database administration topics. - Source: dev.to / 8 months ago
To overcome these challenges, I relied on SQL documentation, online tutorials, and practice sites like DataLemur and SQLBolt. These resources were invaluable in helping me build confidence and refine my skills. - Source: dev.to / 8 months ago
SQLBolt focuses exclusively on giving you hands-on practice with increasingly complex queries. The platform starts with simple SELECT statements and progressively moves to complex joins and subqueries. You'll get immediate visual feedback while the site explains concepts briefly before each practice section. - Source: dev.to / about 1 year ago
SQLBolt - Great for learning SQL using problem solving approach by answering various quizzes after each topic. - Source: dev.to / over 1 year ago
SQLZOO - SQLZoo includes tutorials and reference to support people learning SQL. It features:
Cache Status - Cache Status is an easy cache status and management tool located right in your address-bar.
The Odin Project - How it works. This is the website we wish we had when we were learning on our own. We scour the internet looking for only the best resources to supplement your learning and present them in a logical order.
Cache Enabler - A lightweight caching plugin that creates static HTML files and stores them on your web server.
SQL School - Data analysts training data analysts
CacheFly - The Fastest Global Throughput CDN
