What powers a21tours.com?
Last seen Jun 2026 · 17 technologies across 12 categories
Advertising
Microsoft Advertising
since Feb 2021
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Jan 2023
Ecommerce
Cart Functionality
since Dec 2020
Google Workspace
since Aug 2022
Mailjet
since Aug 2022
JavaScript libraries
Live chat
Crisp Live Chat
since Jun 2022
WhatsApp Business Chat
since Jun 2022
Miscellaneous
HTTP/3
since Nov 2023
Programming languages
PHP
since Jan 2019
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jan 2019
Web frameworks
CodeIgniter
since Jan 2023
Audience
- 67% desktop
- 33% phone
Vietnam
India
United Kingdom
Australia
Philippines
Malaysia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.69 / 10 · ranked #19,674,943 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.8 MB · 77 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped core-js Apr 2026
- dropped Facebook Pixel Apr 2026
- dropped Swiper Apr 2026