Via

HTTP response header

Via 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 Via4,694,330
Percentage of websites that use Via header5.55%
Total discovered header valuesMore than 10,000
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

Via Directives

Via directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Connected technologies

Technologies that utilize the header

Google Cloud, category Infrastructure as a Service, total 4,624,110 websites
Google Cloud CDN, category Content Delivery Networks, total 2,328,564 websites
Varnish, category Cache Tools, total 1,445,659 websites
Amazon Cloudfront, category Content Delivery Networks, total 727,174 websites
Fastly, category Content Delivery Networks, total 408,616 websites
ATS, category Web Servers, total 32,281 websites
squid, category Cache Tools, total 17,419 websites
GoDaddy Online Store, category Ecommerce, total 12,654 websites
Fly.io, category Web Hosting, total 9,443 websites
Acquia Cloud Platform CDN, category Content Delivery Networks, total 459 websites

Via header usage distribution by website popularity



Geographical Distribution

Header usage distribution by websites across the globe.






Websites utilizing Via

List of websites that use Via header

DomainCountryRankContacts
code.jquery.com United States23
static.parastorage.com United States31
static.wixstatic.com United States33
siteassets.parastorage.com United States34
player.vimeo.com United States51
w3c.github.io United States56
See full domain list

Common header values

List of top common Via header values

Header valueValue prevalence
1.1 google49.59%
1.1 varnish6.11%
1.1 webcache2 (Varnish/trunk)5.60%
1.1 webcache1 (Varnish/trunk)5.16%
1.1 vegur1.74%
1.1 varnish (Varnish/5.0)1.72%
1.1 varnish, 1.1 varnish1.32%
1.1 varnish (Varnish/6.4)1.28%
1.1 varnish-v40.92%
1.1 varnish (Varnish/6.1)0.70%
1.1 varnish (Varnish/6.0)0.70%
1.1 varnish (Varnish/6.3), 1.1 varnish (Varnish/6.3)0.53%
varnish0.53%
1.1 varnish (Varnish/5.2)0.53%
1.1 varnish (Varnish/6.5)0.50%
1.1 varnish (Varnish/6.2)0.42%
1.1 catalogs.tradeindia.com0.37%
1.1 varnish (Varnish/6.6)0.37%
1.1 alproxy0.37%
1.1 mysimplestore.com0.27%