Cookie consent for SiteGround Optimizer

What SiteGround Optimizer adds to your visitors’ browser

What matters for consent with SiteGround Optimizer

Cookie Rocks with SiteGround Optimizer

What our tests found on SiteGround Optimizer

• Good to know · SiteGround OptimizerSiteGround Optimizer serves one cached page to everyone, whatever the choice

  Its file cache skips only a fixed cookie list (logged-in, carts, comment author) and never stores a response that sets a cookie. A consent cookie is not on that list.

  Read in its code, 16 October 2026, SiteGround Optimizer 7.8.4.

  Full detail

  SiteGround Optimizer's Defer Render-blocking JavaScript adds defer, not async, to enqueued scripts, except handles excluded with sgo_js_async_exclude. Its page rewriting (combination, minification, fonts) and deferral are skipped for logged-in users. Its file cache skips requests carrying a fixed cookie list (sgo_bypass_cookies: logged-in, carts, comment author, wpSGCacheBypass) and never stores a response with Set-Cookie; a consent cookie set in the browser is not on the list, so cached pages stay the same for everyone.

• Depends on a setting · SiteGround OptimizerSiteGround Optimizer lazy loading can let videos load before the choice

  setting “Lazy load iframes” · by default: off

  With iframe lazy loading on, the video address moves to data-src, which a banner reading only src misses. Cookie Rocks 2.5.0 holds the video and starts it after consent, without a reload.

  Seen in our tests, 16 October 2026, SiteGround Optimizer.

  Full detail

  With lazy loading of iframes on, SiteGround Optimizer moves a video's address from src to data-src. A banner that only reads src lets the video load before the choice. Cookie Rocks 2.5.0 holds it and starts it after consent, without a reload.

• Good to know · SiteGround OptimizerSiteGround Optimizer sets no cookie, but its font option still contacts Google

  Web Fonts Optimization inlines Google's font stylesheet, but font files still load from fonts.gstatic.com. No setting removes the request to Google. No WP Consent API or Consent Mode code.

  Read in its code, 16 October 2026, SiteGround Optimizer 7.8.4.

  Full detail

  SiteGround Optimizer sets no cookie and writes nothing to the visitor's browser storage (storage is used only by its admin app). Its Web Fonts Optimization inlines Google's font stylesheet, but the font files still load from fonts.gstatic.com and it adds preconnect links to fonts.gstatic.com and fonts.googleapis.com; no setting of the plugin removes the request to Google. It has no WP Consent API support and no gtag('consent') call.

• Good to know · Cookie Rocks ProCookie Rocks Pro clears page caches when an update changes banner values

  It clears the caches of seven known plugins, such as WP Rocket and LiteSpeed Cache, at the first request after the update. Host and CDN caches keep the old pages until they expire.

  What to do: After an update that changes banner defaults, clear the host or CDN cache by hand.

  Read in its code, 15 October 2026, Cookie Rocks Pro.

  Full detail

  When an update of Cookie Rocks Pro changes or removes a value it sends to visitors (for example the default accent colour), Pro clears the known page caches (WP Rocket, LiteSpeed Cache, W3 Total Cache, WP Super Cache, SiteGround Optimizer, WP Fastest Cache, Breeze) at the first request after the update, with no extra database query and nothing more for visitors. An added value clears nothing. Host and CDN caches are not cleared and keep the old pages until they expire.

• Good to know · LiteSpeed Cache, W3 Total Cache, SiteGround Optimizer, AutoptimizeCache plugins' JavaScript options keep the Cookie Rocks banner first

  With LiteSpeed Cache, W3 Total Cache, SiteGround Optimizer or Autoptimize combining or delaying scripts, the banner script stays first and untouched, and trackers are held until Accept all.

  Seen in our tests, 15 October 2026, LiteSpeed Cache, W3 Total Cache, SiteGround Optimizer, Autoptimize 7.9.1, 2.10.7, 7.8.4, 3.1.16.

  Full detail

  With JavaScript combined, minified or delayed (LiteSpeed Cache including Guest Mode and Load JS Delayed, W3 Total Cache minify in auto mode, SiteGround Optimizer combine and async, Autoptimize aggregate including inline JS), the Cookie Rocks head script stays first and untouched, its engine stays a separate file, and trackers are held until Accept all. Without a LiteSpeed web server, LiteSpeed Cache sets no cookie.

• Good to know · SiteGround OptimizerSiteGround Optimizer's script combining keeps the banner and holding working

  setting “Combine JavaScript Files ; Defer render-blocking JavaScript”

  With minify, combine and async loading on, the Cookie Rocks head script stays first, the banner shows and trackers are held until Accept all. SiteGround's dynamic cache was not tested.

  Seen in our tests, 15 October 2026, SiteGround Optimizer 7.8.4.

  Full detail

  With SiteGround Optimizer's JavaScript minify, combine and asynchronous loading on, the page's scripts are combined; the Cookie Rocks head script stays first and untouched, the engine stays separate, the banner shows and the trackers are held until Accept all. SiteGround's dynamic cache needs a SiteGround server and was not part of the test.

Page cache

Other plugins of the same kind.

Every plugin and theme we test →