Title: Stelios's Replies | WordPress.org --- # Stelios [ ](https://wordpress.org/support/users/invader7/) * [Profile](https://wordpress.org/support/users/invader7/) * [Topics Started](https://wordpress.org/support/users/invader7/topics/) * [Replies Created](https://wordpress.org/support/users/invader7/replies/) * [Reviews Written](https://wordpress.org/support/users/invader7/reviews/) * [Topics Replied To](https://wordpress.org/support/users/invader7/replied-to/) * [Engagements](https://wordpress.org/support/users/invader7/engagements/) * [Favorites](https://wordpress.org/support/users/invader7/favorites/) Search replies: ## Forum Replies Created Viewing 14 replies - 1 through 14 (of 14 total) * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Last-Modified header is changing frequently](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [4 years, 8 months ago](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/#post-15067430) * Hello Marko, * I’m sorry for multiple comments but I’m digging deeper here and I want to log everything in this thread for me and anyone else who might experience something like this in the future. * I enabled Debug logging and I found in the pagecache log file the following entries * ``` [Sun, 14 Nov 2021 21:32:43 +0000] [/] [-] start, can_cache: true, reject reason: [Sun, 14 Nov 2021 21:32:43 +0000] [/] [-] no cache entry for www.radioevros.gr/ 55275e17cac96015371b0e03b7116732_ssl [Sun, 14 Nov 2021 21:32:48 +0000] [/] [-] start, can_cache: true, reject reason: [Sun, 14 Nov 2021 21:32:48 +0000] [/] [-] no cache entry for www.radioevros.gr/ 55275e17cac96015371b0e03b7116732_ssl [Sun, 14 Nov 2021 21:32:50 +0000] [/] [-] start, can_cache: true, reject reason: [Sun, 14 Nov 2021 21:32:50 +0000] [/] [-] no cache entry for www.radioevros.gr/ 55275e17cac96015371b0e03b7116732_ssl [Sun, 14 Nov 2021 21:33:10 +0000] [/] [-] start, can_cache: true, reject reason: [Sun, 14 Nov 2021 21:33:10 +0000] [/] [-] no cache entry for www.radioevros.gr/ 55275e17cac96015371b0e03b7116732_ssl ``` * It seems that the key is not found in my cache engine (Memcached) and as a result a new version is served. Each time the same key is calculated. I will dig deeper to find why this is happening and will update the thread. * Thanks - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Last-Modified header is changing frequently](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [4 years, 8 months ago](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/#post-15064699) * I found something interesting which I was missing. * Reading your wiki [https://github.com/W3EDGE/w3-total-cache/wiki/FAQ:-Installation:-Nginx-Web-Server#configuration](https://github.com/W3EDGE/w3-total-cache/wiki/FAQ:-Installation:-Nginx-Web-Server#configuration) I saw that I didn’t have the following line in my nginx config: * `include /var/www/vhosts/yoursite.com/nginx.conf;` * Adding this I see that the changes are reflected because now I can see the modified Cache Control header which I lowered to 120 seconds, so this works. * `Cache-Control max-age=120, public` * I believe you should highlight this more in the Browser Cache page just to make sure that people are aware that this is required, this is an administrative task outside wordpress / w3. * The issue still persist even after this change. * It is not clear to me why some responses have obsolete HTTP headers, as you can see below within 5 seconds I get 2 different responses and the 1st is missing Last-Modified and Expires. * Thanks! * ``` curl https://www.radioevros.gr/ -I HTTP/1.1 200 OK Date: Sat, 13 Nov 2021 13:48:15 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive Vary: Accept-Encoding Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink Referrer-Policy: no-referrer-when-downgrade ``` * ``` curl https://www.radioevros.gr/ -I HTTP/1.1 200 OK Date: Sat, 13 Nov 2021 13:48:21 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive Vary: Accept-Encoding Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink Last-Modified: Sat, 13 Nov 2021 13:48:20 GMT Expires: Sat, 13 Nov 2021 13:50:20 GMT Pragma: public Cache-Control: max-age=120, public ETag: "2ff2496d2a04cf5adf8ffa0b79ceefa6" Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink Referrer-Policy: no-referrer-when-downgrade ``` - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Last-Modified header is changing frequently](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [4 years, 8 months ago](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/#post-15063694) * Hi Marko, * I disabled “Set cache control header” from the General section in Performance >Browser Cache. I saved and purged the cache. The issue persists. * I believe it could be related to Nginx or Memcached. Testing in my localhost with Set cache control header enabled and Apache instead of Nginx and Disk caching instead of Memcached seems to work as expected (Last-Modified & Expires do not change). * Thank you. - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Last-Modified header is changing frequently](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [4 years, 8 months ago](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/#post-15060250) * Hi Marko, * Sure, the URL that I’m referring too is the main page of [https://www.radioevros.gr/](https://www.radioevros.gr/) * Below you can see 4 requests within 2-3 minutes, ordered. * Request #2 is different than others, #1, #3 and #4 have the same ETag header but Last-Modified and Expires headers are different. * Requests are bypassing CloudFlare, they are send directly to origin server. * Thanks. * **#1 curl [https://www.radioevros.gr/](https://www.radioevros.gr/) -I** * ``` HTTP/1.1 200 OK Date: Thu, 11 Nov 2021 23:49:51 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive Vary: Accept-Encoding Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink Last-Modified: Thu, 11 Nov 2021 23:49:50 GMT Expires: Fri, 12 Nov 2021 00:49:50 GMT Pragma: public Cache-Control: max-age=3599, public ETag: "c4a3003d0e6daaa00a84117a75379b06" Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink ``` * **#2 curl [https://www.radioevros.gr/](https://www.radioevros.gr/) -I** * ``` HTTP/1.1 200 OK Date: Thu, 11 Nov 2021 23:50:05 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive Vary: Accept-Encoding Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink ``` * **#3 curl [https://www.radioevros.gr/](https://www.radioevros.gr/) -I** * ``` HTTP/1.1 200 OK Date: Thu, 11 Nov 2021 23:51:44 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive Vary: Accept-Encoding Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink Last-Modified: Thu, 11 Nov 2021 23:51:40 GMT Expires: Fri, 12 Nov 2021 00:51:40 GMT Pragma: public Cache-Control: max-age=3596, public ETag: "c4a3003d0e6daaa00a84117a75379b06" Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink ``` * **#4 curl [https://www.radioevros.gr/](https://www.radioevros.gr/) -I** * ``` HTTP/1.1 200 OK Date: Thu, 11 Nov 2021 23:52:31 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive Vary: Accept-Encoding Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink Last-Modified: Thu, 11 Nov 2021 23:52:10 GMT Expires: Fri, 12 Nov 2021 00:52:10 GMT Pragma: public Cache-Control: max-age=3579, public ETag: "c4a3003d0e6daaa00a84117a75379b06" Link: ; rel="https://api.w.org/" Link: ; rel="alternate"; type="application/json" Link: ; rel=shortlink ``` - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). - This reply was modified 4 years, 8 months ago by [Stelios](https://wordpress.org/support/users/invader7/). * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Last-Modified header is changing frequently](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [4 years, 8 months ago](https://wordpress.org/support/topic/last-modified-header-is-changing-frequently/#post-15048643) * Thank you for your response Marko. Really appreciated. * I’m using Memcached. * Regarding “have you set the Cloudflare to respect the existing Browser Cache headers?” do you mean creating a Page Rule with “Origin Cache Control” enabled? If this is what you mean, no I don’t use this, I would say I have the default configuration. * My “/” page is always returning CF-Cache-Status: DYNAMIC. Even 304 responses in “/” are returning DYNAMIC [https://developers.cloudflare.com/cache/about/default-cache-behavior](https://developers.cloudflare.com/cache/about/default-cache-behavior) * I think that the issue is not related with CloudFlare because I’m bypassing CloudFlare and I’m calling my origin server directly with cURL and still the Last-Modified header is changing every 2-3-4 minutes. * Thanks * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Manually minifying CSS files results in 404 not found](https://wordpress.org/support/topic/manually-minifying-css-files-results-in-404-not-found/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [7 years, 1 month ago](https://wordpress.org/support/topic/manually-minifying-css-files-results-in-404-not-found/#post-11602601) * Thank you Marko, is there an example in your wiki pages about that? It has to be done in the “nginx.conf” file? * “has to forward minify assets requests” so the problem here is that the file is never created? * Thanks! * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Manually minifying CSS files results in 404 not found](https://wordpress.org/support/topic/manually-minifying-css-files-results-in-404-not-found/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [7 years, 1 month ago](https://wordpress.org/support/topic/manually-minifying-css-files-results-in-404-not-found/#post-11598747) * Thank you Marko, * It is already disabled, my current hosting setup is nginx in front of apache web server, but as I already tested the .htaccess files are working. * Is there a directory that I should find the minified css file? in order to start researching if the file is created successfully? * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[W3 Total Cache] Manually minifying CSS files results in 404 not found](https://wordpress.org/support/topic/manually-minifying-css-files-results-in-404-not-found/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [7 years, 1 month ago](https://wordpress.org/support/topic/manually-minifying-css-files-results-in-404-not-found/#post-11598622) * Hello Marko, * Thank you for your quick response, this option is checked/enabled. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Jetpack - WP Security, Backup, Speed, & Growth] Jetpack.css errors in css validator](https://wordpress.org/support/topic/jetpack-css-errors-in-css-validator/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [8 years, 1 month ago](https://wordpress.org/support/topic/jetpack-css-errors-in-css-validator/#post-10365357) * Thanks [@lizkarkoski](https://wordpress.org/support/users/lizkarkoski/) , i will contact support for this issue. The file i’m referring to is already minified but it may break the rest of the process. * Forum: [Everything else WordPress](https://wordpress.org/support/forum/miscellaneous/) In reply to: [How to remove sensitive information from a plugin’s review page/comment?](https://wordpress.org/support/topic/how-to-remove-sensitive-information-from-a-plugins-review-page-comment/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [8 years, 5 months ago](https://wordpress.org/support/topic/how-to-remove-sensitive-information-from-a-plugins-review-page-comment/#post-9942484) * Thank you very much, have a nice week. * Forum: [Reviews](https://wordpress.org/support/forum/reviews/) In reply to: [[Facebook Reposter] Would have been amazing](https://wordpress.org/support/topic/would-have-been-amazing/) * Plugin Author [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [10 years, 1 month ago](https://wordpress.org/support/topic/would-have-been-amazing/#post-8069043) * Please add me to your skype in order to solve your issue _[moderated]_ - This reply was modified 8 years, 5 months ago by [Andrew Nevins](https://wordpress.org/support/users/anevins/). * Forum: [Reviews](https://wordpress.org/support/forum/reviews/) In reply to: [[Facebook Reposter] Would have been amazing](https://wordpress.org/support/topic/would-have-been-amazing/) * Plugin Author [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [10 years, 4 months ago](https://wordpress.org/support/topic/would-have-been-amazing/#post-8069034) * If you still cant make it work , i could take a look for you. * Forum: [Reviews](https://wordpress.org/support/forum/reviews/) In reply to: [[Facebook Reposter] Would have been amazing](https://wordpress.org/support/topic/would-have-been-amazing/) * Plugin Author [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [10 years, 4 months ago](https://wordpress.org/support/topic/would-have-been-amazing/#post-8069022) * What do you mean , it doesn’t work , please provide your followed steps in order to fix your issue. It is currently working in my site. * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[Ajaxify Wordpress Site(AWS)] What about greek characters in url ??](https://wordpress.org/support/topic/what-about-greek-characters-in-url/) * Thread Starter [Stelios](https://wordpress.org/support/users/invader7/) * (@invader7) * [11 years ago](https://wordpress.org/support/topic/what-about-greek-characters-in-url/#post-6332702) * url = $this.attr(‘href’), * to * url = decodeURIComponent($this.attr(‘href’)), * solves the problem Viewing 14 replies - 1 through 14 (of 14 total)