Speed optimization, CDNs, caching, load balancing and Core Web Vitals explained.
14 articles
Hostinger's uptime is excellent and its speed is solid for the price. A 365-day independent study recorded 99.9937% uptime and an average US server response (TTFB) of 483 ms, with 0% errors under a 100-user load test (Tech Help Canada). A shorter 30-day WordPress test with caching recorded 183 ms TTFB and 99.93% uptime (WPSchool).
Your main server holding the original content. Receives requests only on cache misses. Can be any existing hosting.
Here's a number that should keep you up at night: 53% of mobile users abandon sites that take longer than 3 seconds to load. That's more than half your potential visitors gone before they see a single word of your content.
Google confirmed page speed is a direct ranking factor. But beyond SEO, speed impacts every metric that matters to your business:
Uptime is the percentage of time your website is accessible and functioning correctly for visitors. Downtime is when your site is unreachable, returns errors, or loads so slowly it's effectively unusable.
Best Value: Bunny CDN ($0.01/GB), Premium performance at 80% less than competitors.
Network size determines how close your content is to users. More PoPs = lower latency for more visitors. But PoP count alone doesn't tell the whole story, location quality and interconnection density matter too.
Fastest for Static Content: Nginx, 2.5x more requests/sec than Apache, marginally faster than LiteSpeed.
1. Convert to WebP: Saves 25-35% vs JPEG with no visible quality loss. 97%+ browser support.
Bandwidth is the total amount of data transferred between your web server and your visitors over a period of time (usually measured monthly). Every time someone visits your site, data flows from your server to their browser: HTML files, images, CSS stylesheets, JavaScript, fonts, and videos.
HTTP/3 is the third major version of the Hypertext Transfer Protocol, standardized by the IETF in June 2022 (RFC 9114). Unlike HTTP/1.1 and HTTP/2, which run on TCP, HTTP/3 runs on QUIC, a UDP-based transport protocol originally developed by Google.
Both SSD and NVMe use flash memory, the key difference is how data travels between the storage chip and the CPU. SATA SSDs use the older AHCI protocol over a SATA bus (limited to ~600 MB/s). NVMe drives communicate directly through PCIe lanes, removing the bottleneck entirely.
