http3checker.com

Main Information

ℹ️

Title: HTTP/3 Check - QUIC Browser Test Online

Description: Free HTTP/3 browser check and QUIC test tool. Check if your website supports HTTP3 online. Test QUIC protocol support and HTTP/3 connections instantly.

Keywords: unknown

Page Encoding: utf-8

Page Filesize: 13 KB

Server Information

🖥️

IP: 62.171.161.69

Location: France,FR,Lauterbourg,67630,48.9742,8.1851,Europe/Paris

Encoding: utf-8

Meta Tags List

🏷️

charset: UTF-8
name: viewport content: width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no
name: description content: Free HTTP/3 browser check and QUIC test tool. Check if your website supports HTTP3 online. Test QUIC protocol support and HTTP/3 connections instantly.
name: keywords content: HTTP/3, QUIC, http3 browser check, http3 check online, quic test, quic test online, browser test, website checker, domain test, web performance, http3 test, check http3
name: author content: Http3checker.com
property: og:title content: HTTP/3 Check - QUIC Browser Test Online
property: og:description content: Free HTTP/3 browser check and QUIC test tool. Check if your website supports HTTP3 online.
property: og:type content: website
property: og:url content: https://http3checker.com/
property: og:image content: ../images/favicon-196x196.png
name: twitter:card content: summary
name: twitter:title content: HTTP/3 Check - QUIC Browser Test
name: twitter:description content: Free HTTP/3 browser check and QUIC test tool online. meta:
name: msapplication-TileColor content: #0f0f1a
name: msapplication-TileImage content: ../images/mstile-144x144.png
name: msapplication-square70x70logo content: ../images/mstile-70x70.png
name: msapplication-square150x150logo content: ../images/mstile-150x150.png
name: msapplication-wide310x150logo content: ../images/mstile-310x150.png
name: msapplication-square310x310logo content: ../images/mstile-310x310.png

Internal Links

🔗

External Links

🌐

Resources

Whois Information

📄

domain_name: http3checker.com

update_date: 2026-02-21T19:24:50Z

update_time: 1771701890

creation_date: 2025-03-13T11:40:11Z

creation_time: 1741866011

expiration_date: 2027-03-13T11:40:11Z

Whois Raw Data

📋

            Domain Name: HTTP3CHECKER.COM
Registrar: NameCheap, Inc.
Domain Status: client transfer prohibited
Creation Date: 2025-03-13T11:40:11Z
Registry Expiry Date: 2027-03-13T11:40:11Z
Updated Date: 2026-02-21T19:24:50Z
Name Server: DNS1.REGISTRAR-SERVERS.COM
Name Server: DNS2.REGISTRAR-SERVERS.COM
REGISTRAR Contact: NameCheap, Inc.
>>> Last update of RDAP database: 2026-03-11T11:41:02Z

Robots.txt

🤖

			User-agent: *
Allow: /
Disallow: /css/
Disallow: /js/
Disallow: /images/raw/
Disallow: /imprint.php
Disallow: /privacy.php

# Google
User-agent: Googlebot
Allow: /

User-agent: Googlebot-Image
Allow: /

User-agent: Googlebot-Mobile
Allow: /

# Bing/Microsoft
User-agent: Bingbot
Allow: /

User-agent: MSNBot
Allow: /

# Yahoo
User-agent: Slurp
Allow: /

# DuckDuckGo
User-agent: DuckDuckBot
Allow: /

# Baidu
User-agent: Baiduspider
Allow: /

# Yandex
User-agent: YandexBot
Allow: /

# Apple
User-agent: Applebot
Allow: /

# Amazon
User-agent: Amazonbot
Allow: /

# Facebook/Meta
User-agent: Facebot
Allow: /

User-agent: facebookexternalhit
Allow: /

# Twitter/X
User-agent: Twitterbot
Allow: /

# LinkedIn
User-agent: LinkedInBot
Allow: /

# Internet Archive
User-agent: ia_archiver
Allow: /

Sitemap: https://http3checker.com/sitemap.xml

SEO Audit

🔍

Technical SEO

✓

Response Code

200

Status 200 OK - page loads correctly.

✓

Character Encoding

Page: utf-8, Header: utf-8

Character encoding consistent between HTML and headers.

✓

Page Size

13842 bytes

Page size acceptable for fast loading.

✓

Resources

19 total

Optimal number of resources.

✓

Hreflang Tags

0 hreflang tags

Add hreflang tags if you have multilingual content.

✓

Robots.txt

Exists

Robots.txt file found.

✓

Sitemap

Declared in robots.txt

Sitemap declared in robots.txt.

✓

HTTPS

Yes

Secure HTTPS connection enabled.

✓

Compression

gzip

Gzip or Zstd compression enabled for faster loading.

!

Caching

Not set

Add cache-control headers to improve loading speed for returning visitors.

✓

Page Speed

4.05 ms

Excellent loading speed.

On-Page SEO

✓

Title

HTTP/3 Check - QUIC Browser Test Online

Good title length (30-60 characters).

✓

Meta Description

Free HTTP/3 browser check and QUIC test tool. Check if your website supports HTTP3 online. Test QUIC protocol support and HTTP/3 connections instantly. Lenght:151

Good meta description length (100-160 characters).

✓

H1 Heading

1 found - "HTTP/3 Check - QUIC Browser Test"

Good - single H1 heading found.

!

Word Count

489

Content somewhat short. Expand to 500+ words for optimal SEO.

!

Canonical Tag

Add canonical tag to prevent duplicate content issues.

✓

Duplicate Meta

[]

No duplicate meta tags found.

✓

Keywords

Meta keywords are optional (not used by major search engines).

Content and UX

✓

Language

en

Language attribute properly set.

✓

Images

0 total, 0 missing ALT

All images have proper ALT text.

✓

Viewport

width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no

Viewport meta tag properly set for mobile devices.

✓

Open Graph

All OG tags present.

All essential OpenGraph tags present.

✓

Structured Data

2 JSON-LD scripts

Structured data (JSON-LD) found.

Search Phrases - Google

🔍

Position	Phrase	Page	Snippet
8	3 check	/	HTTP/3 Check - QUIC Browser Test Online Free HTTP/3 browser check and QUIC test tool . Check if your website supports HTTP3 online. Test QUIC protocol support and HTTP/3 connections instantly.

Additional Services

💎