GitHub|Since 2007
Wptr Lab

USDotBlockvsRackNerdUS

Head-to-head hosting performance comparison based on real test data

Test Date: 2/23/2026

DotBlock
WPTR ScoreWinner1202 ms
Rank#189
TTFB249ms
Time to 1MB223ms
Score1202
LCP649ms
FCP449ms
RackNerd
WPTR Score1663 ms
Rank#493
TTFB252ms
Time to 1MB574ms
Score1663
LCP652ms
FCP452ms

Our Verdict

DotBlock wins with 249ms TTFB (vs RackNerd's 252ms)

TTFB Breakdown (Connection Phases)

PhaseDotBlockRackNerdWinner
DNS Lookup34ms35msDotBlock
TCP Connection14ms14msTie
TLS Handshake16ms17msDotBlock
Server Processing603ms219msRackNerd
Total TTFB667ms285msDotBlock

Technology & Security Features

DotBlock

Server/CDNcloudflare
HSTS Disabled
Brotli Compression Enabled
HTTP/3 (QUIC) Disabled
Page Size60.6 KB

RackNerd

Server/CDNcloudflare
HSTS Disabled
Brotli Compression Enabled
HTTP/3 (QUIC) Disabled
Page Size19.9 KB
1/3
DotBlock Security Features
1/3
RackNerd Security Features

TTFB Comparison Over Time

Understanding the Metrics

WPTR Score: Wptr Lab Real-Load Score: (Time to 1MB x 2.4) + TTFB. Raw server & network performance (Lower is better).
TTFB: Time to First Byte - How fast the server responds
Time to 1MB: Time to 1MB - Time taken to download 1MB of data (lower is better)
LCP: Largest Contentful Paint - When main content loads
FCP: First Contentful Paint - When first content appears
Score: Overall performance score (0-100)

A Note on Hosting Selection

While TTFB and performance metrics are important indicators, choosing the right hosting provider involves many other factors: security measures, customer support quality, uptime guarantees, scalability options, and pricing structure. Academic research emphasizes that a balanced approach considering all these aspects leads to better long-term outcomes.

Chizhov, A., & Fesenko, A. (2025). Web hosting companies' client solutions: A study of a strategic standpoint. Corporate & Business Strategy Review. doi.org/10.22495/cbsrv6i1art14

Data in this comparison is obtained through independent tests using our TTFB Checker tool.