🆚 Lazy loading vs. Preconnect
- ⏳ Lazy loading is noticeably more popular than Preconnect.
- ⏳ Lazy loading is more popular in the United States, the United Kingdom, and Germany.
Preconnect is more popular in Thailand, Cambodia, and El Salvador.
Statistics based on 4M+ analyzed websites. About this data
Type
Performance optimization technology
Performance optimization technology
About
Native lazy loading is a technique to load non-critical images and iframes marked with the loading="lazy" attribute only when needed.
The rel="preconnect" attribute on 
HTML <link> elements instructs browsers to establish early connections to external origins before resources are requested.
It is used to reduce latency by opening DNS lookup, TCP handshake, and TLS negotiation in advance for critical third-party domains such as CDNs, font providers, and analytics services.
Headquarters
Cambridge, Massachusetts, United States
Cambridge, Massachusetts, United States
Categories
Popularity
Determined by the number of sites using each technology.
Lazy loading performance optimization technology is 1.5 times more popular than Preconnect.
Total websites
Market share
Performance Optimization
Popularity by country
Determined by the number of sites detected from each country.
Lazy loading is more popular in the United States, the United Kingdom, and Germany, while Preconnect is more popular in Thailand, Cambodia, and El Salvador.
United States
United Kingdom
Germany
Japan
France
Spain
Italy
Australia
Netherlands
India
Awards
- 🥇 Most popular in the United States in the Performance Optimization category.
- 🥇 Most popular in Germany in the Performance Optimization category.
- 🥇 Most popular in the United Kingdom in the Performance Optimization category.
- 🥇 Most popular in France in the Performance Optimization category.
- 🥇 Most popular in Spain in the Performance Optimization category.
- 🥇 Most popular in Thailand in the Performance Optimization category.
- 🥇 Most popular in Cambodia in the Performance Optimization category.
- 🥇 Most popular in the British Virgin Islands in the Performance Optimization category.
- 🥇 Most popular in El Salvador in the Performance Optimization category.
- 🥇 Most popular in Guernsey in the Performance Optimization category.
Popularity by domain category
Determined by the number of sites in each category.
Lazy loading is more popular among sites focused on business, online shopping, and blogs and wiki, while Preconnect is more commonly used on marketing and merchandising, and sports sites.
Business
Online Shopping
Marketing/Merchandising
Blogs/Wiki
Education/Reference
Internet Services
Entertainment
Health
General News
Travel
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 4,046,631 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.