X-Via

HTTP response header

The Via general header is added by proxies both forward and reverse proxies and can appear in the request headers and the response headers. It is used for tracking message forwards avoiding request loops and identifying the protocol capabilities of senders along the request/response chain

Header usage statistics

X-Via response header information and usage statistics.

Websites using header X-Via 176,015
Percentage of websites that use X-Via header 0.18%
Total discovered header values 9,199
Header uses directives No
Header values are unique or random No
Most popular in the country United Kingdom

Connected technologies

Technologies that utilize the header

Cdn Cache Server, category Content Delivery Networks, total 5,528 websites

Distribution by websites popularity

X-Via detection in the top websites by popularity

Top 10k sites 35 websites
Top 100k sites 373 websites
Top 1m sites 3,412 websites

Websites utilizing X-Via

List of websites that use X-Via header

Domain Country Rank Contacts
www.opera.com United States of America 346
slack.com United States of America 668
sc.chinaz.com China 899
chinanews.com United States of America 1,416
www.chinanews.com 1,416
www.rijksoverheid.nl Netherlands 1,548
See full domain list
Flat price per the report, subscription is not required.

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common X-Via header values

Header value Value prevalence
LAX1 78.33%
L4LB-150 1.22%
L4LB-151 1.21%
1.0 PSmglsjLAX2kb133:5 (Cdn Cache Server V2.0) 0.92%
SWS Accelerator - KPE1 0.44%
SEA1 0.31%
1.0 PSmgasbIAD1ak79:2 (Cdn Cache Server V2.0) 0.28%
1.1 ebs-63455 (random:403850 Fikker/Webcache/3.8.2) 0.25%
1.1 PS-FOC-01tmR97:0 (Cdn Cache Server V2.0), 1.1 PSmgasbIAD1ak79:2 (Cdn Cache Server V2.0) 0.20%
1.1 PS-FOC-01tmR97:0 (Cdn Cache Server V2.0), 1.1 PSmgdfDEN1qp62:3 (Cdn Cache Server V2.0) 0.20%
1.1 PS-FOC-01tmR97:0 (Cdn Cache Server V2.0), 1.1 PSmglsjLAX2kb133:5 (Cdn Cache Server V2.0) 0.19%
1.1 PSmglsjLAX2ay162:8 (Cdn Cache Server V2.0), 1.1 PSmgzjgORD1re39:10 (Cdn Cache Server V2.0) 0.17%
MIA1 0.16%
ASH1 0.15%
prod-diy-wn2-c1 0.14%
1.1 xaWGjg588 (random:859943 Fikker/Webcache/3.8.2) 0.14%
prod-diy-wn4-c1 0.13%
prod-diy-wn3-c1 0.13%
prod-diy-wn1-c1 0.12%
1.1 PSmglsjLAX2ay162:8 (Cdn Cache Server V2.0), 1.1 PSmgasbIAD1ak79:2 (Cdn Cache Server V2.0) 0.12%