Via
HTTP response headerVia header informs the client of proxies through which the response was sent
Header usage statistics
Via response header information and usage statistics.| Websites using header Via | 722,352 |
| Percentage of websites that use Via header | 6.20% |
| Total discovered header values | 17,687 |
| Header uses directives | No |
| Header values are unique or random | No |
| Most popular in the country | 
United States of America
|
Connected technologies
Technologies that utilize the header
Google Cloud, category
Content Delivery Networks, total
518,697 websites
|
Varnish, category
Cache Tools, total
467,488 websites
|
Amazon Cloudfront, category
Content Delivery Networks, total
117,413 websites
|
Fastly, category
Content Delivery Networks, total
77,572 websites
|
Vegur, category
Reverse Proxy, total
29,248 websites
|
|
Citrix ADC, category
Network Devices, total
1,961 websites
|
|
ALProxy, category
Reverse Proxy, total
1,671 websites
|
|
Ipswitch-IMail, category
Web Mail, total
5 websites
|
|
Cisco ACE, category
Network Devices, total
1 websites
|
Distribution by websites popularity
Via detection in the top websites by popularity| Top 10k sites | 2,463 websites |
| Top 100k sites | 11,304 websites |
| Top 1m sites | 77,670 websites |
Websites utilizing Via
List of websites that use Via header| Domain | Country | Rank | Contacts |
|---|---|---|---|
|
|
United States of America
|
21 | |
|
|
United States of America
|
25 | |
|
|
United States of America
|
26 | |
|
|
United States of America
|
34 | |
|
|
United States of America
|
35 | |
|
|
United States of America
|
35 |
Geographical Distribution
Header usage distribution by websites across the globe.Common header values
List of top common Via header values| Header value | Value prevalence |
|---|---|
| 1.1 varnish | 27.31% |
| 1.1 google | 15.20% |
| 1.1 varnish (Varnish/6.0) | 8.98% |
| 1.1 varnish, 1.1 varnish | 6.81% |
| 1.1 varnish (Varnish/6.5) | 4.64% |
| 1.1 varnish-v4 | 4.44% |
| 1.1 vegur | 4.05% |
| 1.1 varnish (Varnish/5.1) | 2.05% |
| varnish | 1.85% |
| 1.1 varnish (Varnish/5.2) | 0.82% |
| 1.1 varnish (Varnish/6.3), 1.1 varnish (Varnish/6.3) | 0.79% |
| 1.1 varnish (Varnish/5.0) | 0.67% |
| 1.1 varnish (Varnish/6.1) | 0.36% |
| 1.1 alproxy | 0.23% |
| 1.1 varnish (Varnish/6.4) | 0.21% |
| 1.1 google, 1.1 varnish | 0.19% |
| 1.1 varnish (Varnish/6.2) | 0.15% |
| 1.1 varnish (Varnish/6.3) | 0.12% |
| 1.1 squizedge.net | 0.10% |
| 1.1 shluota (squid) | 0.10% |