GitHub|Since 2007
Wptr Lab

USA2 HostingvsPantheonUS

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

Test Date: 2/23/2026

A2 Hosting
WPTR Score499 ms
Rank#142
TTFB240ms
Time to 1MB160ms
Score499
LCP640ms
FCP440ms
Pantheon
WPTR ScoreWinner367 ms
Rank#13
TTFB48ms
Time to 1MB120ms
Score367
LCP448ms
FCP248ms

Our Verdict

Pantheon wins with 48ms TTFB (vs A2 Hosting's 240ms)

TTFB Breakdown (Connection Phases)

PhaseA2 HostingPantheonWinner
DNS Lookup26ms32msA2 Hosting
TCP Connection16ms13msPantheon
TLS Handshake22ms15msPantheon
Server Processing51ms19msPantheon
Total TTFB115ms79msPantheon

Technology & Security Features

A2 Hosting

Server/CDNcloudflare
HSTS Enabled
Brotli Compression Enabled
HTTP/3 (QUIC) Disabled
Page Size20.8 KB

Pantheon

Server/CDNnginx
HSTS Enabled
Brotli Compression Disabled
HTTP/3 (QUIC) Disabled
Page Size672.8 KB
2/3
A2 Hosting Security Features
1/3
Pantheon 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.