Title: Plugin incompatible with Siteground Optimizer
Last modified: October 22, 2021

---

# Plugin incompatible with Siteground Optimizer

 *  Resolved [solagirl](https://wordpress.org/support/users/solagirl/)
 * (@solagirl)
 * [4 years, 7 months ago](https://wordpress.org/support/topic/plugin-incompatible-with-siteground-optimizer/)
 * I am working on a WooCommerce website hosted on Siteground. I use Siteground 
   Optimizer to cache the site. But with Retainful 2.6.4 activated, the dynamic 
   cache fails.
 * I tested with clean WordPress, default theme and only installed WooCommerce, 
   Siteground Optimizer and Retainful 2.6.4. Siteground Optimizer provided a function
   to test urls for cache status. As long as Retainful is activated, the test always
   fails.
 * The cache can be disabled by cache-control header, but the request header and
   response header looks good to me so I’m not quite sure what the problem is. Hopes
   you can help.
 * Request Headers:
 *     ```
       :authority: https://yoursite.com
       :method: GET
       :path: /
       :scheme: https
       accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
       accept-encoding: gzip, deflate, br
       accept-language: eo
       cache-control: no-cache
       cookie: _ga=GA1.2.235506387.1634891035; _gid=GA1.2.225607435.1634891035
       dnt: 1
       pragma: no-cache
       sec-ch-ua: "Google Chrome";v="95", "Chromium";v="95", ";Not A Brand";v="99"
       sec-ch-ua-mobile: ?0
       sec-ch-ua-platform: "Windows"
       sec-fetch-dest: document
       sec-fetch-mode: navigate
       sec-fetch-site: none
       sec-fetch-user: ?1
       upgrade-insecure-requests: 1
       user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
       ```
   
 * Response Header:
 *     ```
       content-encoding: br
       content-type: text/html; charset=UTF-8
       date: Fri, 22 Oct 2021 09:06:51 GMT
       host-header: 6b7412fb82ca5edfd0917e3957f05d89
       link: <https://yoursite.com/wp-json/>; rel="https://api.w.org/"
       server: nginx
       set-cookie: wp_woocommerce_session_84947a0572c18cda483728b049d6f0d8=cf4b188e56aacfe10d190931134029c3%7C%7C1635066411%7C%7C1635062811%7C%7Cc9df83f0e9ed75a7e125f047a1d1111a; expires=Sun, 24-Oct-2021 09:06:51 GMT; Max-Age=172800; path=/; HttpOnly
       strict-transport-security: max-age=10886400
       vary: Accept-Encoding
       x-cache-enabled: True
       x-httpd-modphp: 1
       x-proxy-cache: MISS
       x-proxy-cache-info: 0 NC:000000 UP:SKIP_CACHE_SET_COOKIE
       ```
   

Viewing 1 replies (of 1 total)

 *  Plugin Author [retainful](https://wordpress.org/support/users/retainful/)
 * (@retainful)
 * [4 years, 7 months ago](https://wordpress.org/support/topic/plugin-incompatible-with-siteground-optimizer/#post-15004151)
 * Hi
 * Thank you for reaching out and apologies for the delay in response due to weekend.
   
   Let’s have this tested locally and see what the issue is. Please allow us sometime
   to get back to you on this.
 * Thanks
    Team Retainful

Viewing 1 replies (of 1 total)

The topic ‘Plugin incompatible with Siteground Optimizer’ is closed to new replies.

 * ![](https://ps.w.org/retainful-next-order-coupon-for-woocommerce/assets/icon-
   256x256.png?rev=3108566)
 * [Retainful - WooCommerce Abandoned Cart, Newsletters, Email Marketing, Signup Forms and Automation](https://wordpress.org/plugins/retainful-next-order-coupon-for-woocommerce/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/retainful-next-order-coupon-for-woocommerce/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/retainful-next-order-coupon-for-woocommerce/)
 * [Active Topics](https://wordpress.org/support/plugin/retainful-next-order-coupon-for-woocommerce/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/retainful-next-order-coupon-for-woocommerce/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/retainful-next-order-coupon-for-woocommerce/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [retainful](https://wordpress.org/support/users/retainful/)
 * Last activity: [4 years, 7 months ago](https://wordpress.org/support/topic/plugin-incompatible-with-siteground-optimizer/#post-15004151)
 * Status: resolved