GitHub|Since 2007
Wptr Lab

USGlowHostvsIron Mountain Data CentersUS

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

Test Date: 2/23/2026

GlowHost
WPTR Score6603 ms
Rank#831
TTFB632ms
Time to 1MB2300ms
Score6603
LCP1032ms
FCP832ms
Iron Mountain Data Centers

Iron Mountain Data Centers

View Details →
WPTR ScoreWinner1355 ms
Rank#308
TTFB227ms
Time to 1MB346ms
Score1355
LCP627ms
FCP427ms

Our Verdict

Iron Mountain Data Centers wins with 227ms TTFB (vs GlowHost's 632ms)

TTFB Breakdown (Connection Phases)

PhaseGlowHostIron Mountain Data CentersWinner
DNS Lookup317ms154msIron Mountain Data Centers
TCP Connection449ms178msIron Mountain Data Centers
TLS Handshake147ms108msIron Mountain Data Centers
Server Processing170ms85msIron Mountain Data Centers
Total TTFB1083ms525msIron Mountain Data Centers

Technology & Security Features

GlowHost

Server/CDNApache
HSTS Disabled
Brotli Compression Disabled
HTTP/3 (QUIC) Disabled
Page Size107.1 KB

Iron Mountain Data Centers

Server/CDNVercel
HSTS Disabled
Brotli Compression Disabled
HTTP/3 (QUIC) Disabled
Page Size33.0 KB
0/3
GlowHost Security Features
0/3
Iron Mountain Data Centers 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.