Resource Hints Tester

Free
Utility

Test and optimize preload, prefetch, and preconnect hints for faster website loading.

(4.1) reviews
No signup required

Resource Hints Tester

Examples

Common

Google Fonts CSS
Preload Google Fonts stylesheet to prevent render blocking and improve font loading performance.
preload
style
Framework CSS
Preload essential framework CSS to prevent render blocking and improve initial paint.
preload
style

Performance

Font Provider Connection
Establish early connection to the font provider's domain for faster subsequent requests.
preconnect
font
API Endpoint
Preconnect to API endpoints to reduce connection setup time for dynamic data fetching.
preconnect
script

Best Practice

Hero Image
Preload hero image to ensure immediate visibility when needed in the viewport.
preload
image
Next Page Script
Prefetch JavaScript bundle for the next likely navigation destination.
prefetch
script

Optimize Website Loading with Resource Hints

Professional Features

Analyze the impact of preload, prefetch, and preconnect hints on your website’s loading speed.

Supports Multiple Resource Hints

Test preload, prefetch, and preconnect hints for optimizing website load speed.

Feature
Active

Easy HTML Tag Generation

Automatically generate valid HTML hint tags for your selected resource type.

Feature
Active

Performance Simulation

Compare load times with and without resource hints to measure efficiency gains.

Feature
Active
3+
Features
99.9%
Reliability
24/7
Available
Free
Always

How to Use the Resource Hints Tester

Simple 4-step process

Follow these easy steps to get started with Resource Hints Tester and achieve your goals quickly.

1
Step 1

Enter the URL of the resource you want to test.

Easy
2
Step 2

Choose a resource hint type: preload, prefetch, or preconnect.

Easy
3
Step 3

Generate the corresponding HTML tag and copy it.

Easy
4
Step 4

Simulate the resource loading impact with and without hints.

Easy
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Frequently Asked Questions

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