Everything about VKT Header — practical guides, tips and how-tos.
Change Chrome's User-Agent in 2026: what DevTools device mode can do, where it resets, and how a domain-scoped header extension keeps the fake contained.
Read articleModHeader pioneered HTTP header modification in Chrome. We compare it with VKT Header on pricing, domain scoping, cleanup and privacy — an honest head-to-head.
Read articleAdd or rewrite HTTP request headers in Chrome and Edge with no Burp, no ZAP and no proxy certificate — how header extensions do it, and when they can't.
Read articleDebug API requests in Chrome with an HTTP header editor. Modify auth headers, test CORS, and inspect responses — all inside the real browser environment.
Read articleTest geo-restricted content in Chrome using X-Forwarded-For and Accept-Language headers. No VPN needed - header-level geo testing made easy with VKT Header.
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