Title: User Agent issue
Last modified: September 1, 2016

---

# User Agent issue

 *  [adab](https://wordpress.org/support/users/adab/)
 * (@adab)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/user-agent-issue-1/)
 * We use the following method to serve different content to various devices:
 *     ```
       <?php if ($os_platform == "ios iphone" || $os_platform == "android" || $os_platform == "blackberry" || $os_platform == "ios ipod") {  ?>
       <em>/* The content for those devices */
       </em>
       <?php } else { } ?>
       ```
   
 *  …
 * The issue is that content meant for these specific mobile devices is also being
   served to users on devices like iPads.
 * For example, it appears that if the visit that triggers the cached page is from
   an iPhone, all iPad users will receive that content. If an iPad visit triggers
   the cached page, iPhone users will see the content meant for the iPad.
 * Separate content is served to these devices – as intended – when W3 Total Cache
   is deactivated.
 * I’ve enabled User Agent Groups and added user agents to both high and low fields(
   list below).
 * It seems that the cached content is not distinguishing between some different“
   mobile” devices – in this case iPhone and iPad.
 * Any help to resolve would be much appreciated. Thanks.
 * USER AGENT
    HIGH acer\ s100 android archos5 bada bb10 blackberry9500 blackberry9530
   blackberry9550 blackberry\ 9800 cupcake docomo\ ht\-03a dream froyo googlebot-
   mobile htc\ hero htc\ magic htc_dream htc_magic iemobile/7.0 incognito ipad iphone
   ipod kindle lg\-gw620 liquid\ build maemo mot\-mb200 mot\-mb300 nexus\ 7 nexus\
   one opera\ mini s8000 samsung\-s8000 series60.*webkit series60/5\.0 sonyericssone10
   sonyericssonu20 sonyericssonx10 t\-mobile\ mytouch\ 3g t\-mobile\ opal tattoo
   touch webmate webos
 * LOW
    240×320 2\.0\ mmp \bppc\b alcatel amoi asus au\-mic audiovox avantgo benq
   bird blackberry blazer cdm cellphone danger ddipocket docomo dopod elaine/3\.
   0 ericsson eudoraweb fly haier hiptop hp\.ipaq htc huawei i\-mobile iemobile 
   iemobile/7 iemobile/9 j\-phone kddi konka kwc kyocera/wx310k lenovo lg lg/u990
   lge\ vx midp midp\-2\.0 mmef20 mmp mobilephone mot\-v motorola msie\ 10\.0 netfront
   newgen newt nintendo\ ds nintendo\ wii nitro nokia novarra o2 openweb opera\ 
   mobi opera\.mobi p160u palm panasonic pantech pdxgw pg philips phone playbook
   playstation\ portable portalmmm proxinet psp qtek sagem samsung sanyo sch sch\-
   i800 sec sendo sgh sharp sharp\-tq\-gx10 small smartphone softbank sonyericsson
   sph symbian symbian\ os symbianos toshiba treo ts21i\-10 up\.browser up\.link
   uts vertu vodafone wap willcome windows\ ce windows\.ce winwap xda xoom zte
 * [https://wordpress.org/plugins/w3-total-cache/](https://wordpress.org/plugins/w3-total-cache/)

The topic ‘User Agent issue’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
 * [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/w3-total-cache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/w3-total-cache/)
 * [Active Topics](https://wordpress.org/support/plugin/w3-total-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/w3-total-cache/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [adab](https://wordpress.org/support/users/adab/)
 * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/user-agent-issue-1/)
 * Status: not resolved