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“W3 Total Cache” as user Agent in visitors log – regular traffic

April 14, 2018, 6:35 am
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Replies: 0

Hello,

I am hoping to get help with interpreting what I see in the logs.

There are hundreds of records in the cPanel’ Visitors log for User Agent “W3 Total Cache” that are coming from the same IP (not me looking at it and not hosting server itself). It looks like this process is retrieving old site maps both post and pages.
Site maps became most visited pages now. Site load charts indicates regular spikes of activities that are too regular to be caused by users. Usually User Agent column shows bot name/URL or actual details of the submitted URL request but in this case it is just “W3 Total Cache”. Do not know where this traffic is coming from and why.
I am on the latest version of W3TC and really basic settings, no CDN.
Hosting company suggested to change caching plug in.

Thanks in advance,

AL

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Error clearing caches in W3 Total Cache plugin

April 15, 2018, 4:05 pm
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Replies: 0

Hi expert,

I am encountering problem clearing cache in w3 total cache plugin while doing my web design. Below is some background. I have installed W3 Total Cache plugin, activated the cloudflare extension, however, it is throwing error as below. Also, i noticed that the plugin does not increase the speed at all after check with Google Speed test. Is some configuration that i had done wrongly?

my site – https://www.veecotech.com.my

Fatal error: Uncaught exception 'Exception' with message 'unknown engine ' in /home/ab90275/public_html/wp-content/plugins/w3-total-cache/Cdnfsd_Core.php:48 Stack trace: #0 /home/ab90275/public_html/wp-content/plugins/w3-total-cache/Cdnfsd_CacheFlush.php(199): W3TC\Cdnfsd_Core->get_engine() #1 [internal function]: W3TC\Cdnfsd_CacheFlush::w3tc_flush_execute_delayed_operations(Array) #2 /home/ab90275/public_html/wp-includes/class-wp-hook.php(298): call_user_func_array(Array, Array) #3 /home/ab90275/public_html/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array) #4 /home/ab90275/public_html/wp-content/plugins/w3-total-cache/CacheFlush_Locally.php(253): apply_filters('w3tc_flush_exec...', Array) #5 /home/ab90275/public_html/wp-content/plugins/w3-total-cache/CacheFlush.php(188): W3TC\CacheFlush_Locally->execute_delayed_operations() #6 [internal function]: W3TC\CacheFlush->execute_delayed_operations() #7 /home/ab90275/public_html/wp-includes/class-wp-hook.php(296): call_user_func_array(Array, Array) #8 /home/ab90275/publi in /home/ab90275/public_html/wp-content/plugins/w3-total-cache/Cdnfsd_Core.php on line 48

  • This topic was modified 10 hours, 27 minutes ago by Veecotech.
  • This topic was modified 5 hours, 15 minutes ago by Steve Stern.
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w3_pgcache_prime in cron events

April 16, 2018, 5:52 pm
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Replies: 0

I’ve just noticed that I have two cron jobs scheduled for the w3_pgcache_prime hook and I’m wondering if that’s normal. Here are the jobs as they are listed by the WP Crontrol plugin:

Hook Name: w3_pgcache_prime
Arguments: None
Actions: W3TC\PgCache_Plugin->prime()
Next Run: 2018-04-16 17:43:26 (2 minutes 4 seconds)
Recurrence: [W3TC] Page Cache prime (every 900 seconds)

Hook Name: w3_pgcache_prime
Arguments: [220]
Actions: W3TC\PgCache_Plugin->prime()
Next Run: 2018-04-16 17:40:07 (now)
Recurrence: Non-repeating

Even though the second one says “Non-repeating”, it’s being run every 15 minutes like the first one. I’m running these using the system crontab with the WordPress cron disabled in wp-config.php.

Is this normal? Just wondering why it would run two of these. I have the page cache setup to be primed every 900 seconds with 20 pages per interval, so I understand why one of these would be running. Also, the arguments on the second one increase by 20 each time, so that makes sense, too. Just not sure why two are scheduled. Any insight would be appreciated!

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W3 Total Cache – Deleted But Still Causing Problems

April 18, 2018, 2:50 pm
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Replies: 1

01. I can’t log into my WP Dashboard. …if we can get past that, then please help me with item .02 below.

02. I installed and then removed W3 Total Cache. I removed it because it immediately caused some issues resulting in media not linking to pages. Not sure if it was a problem with my server or with my theme. Regardless, I didn’t really need it and I removed it. All went well, but I have one are on my website that’s not working as a result of something left over from W3 Total Cache. My Theme Company (Theme Junkie) took a look and they’re saying that somehow/somewhere W3 is still caching or misdirecting some things in my mobile. That’s the problem. My desktop version of my website is 100% working and visually intact. My mobile (phone and tablet) versions of my website work for the most part, except for the following.

A. The Home Page of my website on mobile is missing media (images, logos, icon). It’s still functional. Links work, but not visual media (just text placeholders).

B. In HTTP:// mode the mobile Home Page works (!) …not in HTTPS:// which is the default as I have an SSL Certificate installed.

Note: All other pages work 100% on mobile …it’s only the Home Page.

Anyone please. I know that the W3 plug-in has left some needle in the haystack somewhere, but I don’t know where to look in my c-panel and public_html files. I looked around in there, but I don’t see anything.

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Disk enhanced nginx BUG

April 18, 2018, 10:21 pm
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Replies: 0

When using Page Cache method Disk Enhanced there si an error in the generated NGINX config.


location ~ /wp-content/cache/page_enhanced.*gzip$ {
    gzip off;
    types {
        text/xml xml_gzip
    }
    default_type text/html;
    add_header Content-Encoding gzip;
}

the types -> text/xml xml_gzip lacks the closing tag ;

it shold be like this:


location ~ /wp-content/cache/page_enhanced.*gzip$ {
    gzip off;
    types {
        text/xml xml_gzip;
    }
    default_type text/html;
    add_header Content-Encoding gzip;
}
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Purge All Caches from InfniiteWP dashboard

April 19, 2018, 4:11 am
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Replies: 0

I use InfiniteWP to manage and update WordPress websites. As part of this, I want to purge the W3 cache.
1. Does W3Total Cache detect plugin updates and purge the cache automatically
2. If not is there a way to drive the purge from InfiniteWP, is there a way to trigger code remotely to clear the cache?
Thanks, LenW

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Nginx.conf bug

April 19, 2018, 12:34 pm
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Replies: 0

Hi,
When I have page cache to disk enhanced enabled, w3 total cache creates nginx conf.
That nginx conf have a bug (lacking ; after “text/xml xml_gzip”) here:
location ~ /wp-content/cache/page_enhanced.*gzip$ {
gzip off;
types {
text/xml xml_gzip
}
default_type text/html;
expires modified 3600s;
add_header Vary “Accept-Encoding, Cookie”;
add_header Pragma “public”;
add_header Cache-Control “max-age=3600, public”;
add_header Content-Encoding gzip;
}
# END W3TC Page Cache cache

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Problem with menu when W3 is activated

April 20, 2018, 1:46 am
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Replies: 0

Hello,

I have a problem with menu, on theme Astra. Here is the problem I have, and I have managed to established that W3 TC is causing this.

ISSUE:
1. After the purge cache if the mobile version is firstly loaded, than on mobile menu is fine, but on desktop there is a blink in the menu.
2. After the purge cache if the desktop version is firstly loaded, then on desktop menu is fine, but on mobile there is a blink of the full menu.

I’m not using minification of the css and js in W3 TC.

I know that it is a long shot, but does anybody have a clue how to solve this issue. It is driving me crazy.

Thanks.

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Exclude a page from plugin

April 20, 2018, 1:59 pm
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Replies: 0

Hello
I was wondering if there was a way to exclude a page from being Cache? We have forms (gravity form/gravity perks) on our different events page so people can sign up for a certain time slot and once that time slot is picked, it goes away so no one else can pick it.
Our problem is that the cache is keeping the time slots so people are seeing options that are not available.
I’ve linked to one of our events page but they are all the same.
Thank you for your time

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Fatal Error: Purge All Caches

April 20, 2018, 2:07 pm
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Replies: 0

I can empty the opcode cache and the disk cache individually but when I select the option to empty all caches except CloudFlare -or- I select Save All Settings and Purge Cache, I get a fatal error:

Fatal error: Uncaught Exception: unknown engine in /home/taastrat/public_html/wp-content/plugins/w3-total-cache/Cdnfsd_Core.php:48 Stack trace: #0 /home/taastrat/public_html/wp-content/plugins/w3-total-cache/Cdnfsd_CacheFlush.php(199): W3TC\Cdnfsd_Core->get_engine() #1 /home/taastrat/public_html/wp-includes/class-wp-hook.php(286): W3TC\Cdnfsd_CacheFlush::w3tc_flush_execute_delayed_operations(Array) #2 /home/taastrat/public_html/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array) #3 /home/taastrat/public_html/wp-content/plugins/w3-total-cache/CacheFlush_Locally.php(253): apply_filters(‘w3tc_flush_exec…’, Array) #4 /home/taastrat/public_html/wp-content/plugins/w3-total-cache/CacheFlush.php(188): W3TC\CacheFlush_Locally->execute_delayed_operations() #5 /home/taastrat/public_html/wp-includes/class-wp-hook.php(284): W3TC\CacheFlush->execute_delayed_operations() #6 /home/taastrat/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #7 /home/taastrat/public_html/wp-includes/plugin.ph in /home/taastrat/public_html/wp-content/plugins/w3-total-cache/Cdnfsd_Core.php on line 48

Everything had been working fine until I did a few tweaks with Preview mode enabled. I deployed the changes and Preview mode is no longer active. One change I made for which I can not find an unlink option is the linking to WordFence.

  • This topic was modified 2 hours, 47 minutes ago by taastrategies.
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Conflict with W3TC 0.9.6 and TML 6.4.10

April 23, 2018, 12:04 am
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Replies: 0

Hi Frederick,

I’ve pinpointed a conflict between the two.

When W3TC 0.9.6 and TML 6.4.10 are both active and a new user registers, they get trapped in a bit of a reauth=1 login loop and are unable to log in.

Downgrading W3TC to version 0.9.5.4 immediately solves the issue, so the issue was definitely introduced somehow within the 0.9.6 update.

Thank you.

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CDN permission denied

April 23, 2018, 1:26 am
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Replies: 0

Hello,

The unsuccessful transfer queue of my self-hosted CDN shows that permission is denied for .PNG files only. FTP settings are correct and have been tested.

Unable to upload file (ftp_put(): filename.png: Permission denied).

I have ensured that all folders have the correct permissions, 755 for folders, 644 for files.

How can I solve this?

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Page hangs for ages

April 24, 2018, 2:09 am
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CSS version after minify ?

April 25, 2018, 7:35 pm
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Replies: 0

Hi,

How to update CSS/JS version after minify ? or change the minify filename?

Because when we have some modification on CSS or JS we cannot put “versioning” to force user download new version not from caching browser.

I try to clear cache or clear minify but “minify file” filename still doesn’t change

Thanks

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Error / Authorize button MAXcdn doesn’t works

April 26, 2018, 4:20 am
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I can’t connect with my MAXcdn account throught 3WTC, the ‘Authorize’ button MAXcdn doesn’t works.

I’ve pay my licence yesterday just for this option, and it dosen’t works!!!!!!!

I’d replied to my Subscribing email w3tc@w3-edge.com, explain this issue but nobody answered to me. It is very urgent please!!!

Is someone in my situation?
Can someone from the technical support answer me as soon as possible?

thanks!!!

  • This topic was modified 5 hours, 38 minutes ago by petergarden.
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FSD using CloudFlare?

April 26, 2018, 8:44 am
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Replies: 0

Hello –

I have upgraded to the paid version, which allows you to do FSD via a number of CDN’s. Is there any documentation on how to configure W3TC FSD to work with CLoudflare (not to be confused with CloudFRONT from AWS)?

Thanks,
Marco

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Bypassing PHP

April 26, 2018, 11:41 am
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Replies: 0

is there any way i can bypass php after the page is cached ?

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Small PHP 7.2 Compatibility Bug

April 26, 2018, 12:53 pm
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Replies: 2

Got error ‘PHP message: PHP Warning: count(): Parameter must be an array or an object that implements Countable in /<purged>/wp-content/plugins/w3-total-cache/Cdn_Plugin.php on line 1203\n’,

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Wordfence malware warning for W3 Total Cache

April 27, 2018, 4:21 am
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Replies: 0

I use Wordfence as a security plugin and last night it gave a malware warning about W3 Total Cache, specifically this:

This file may contain malicious executable code: wp-content/plugins/w3-total-cache/PgCache_ContentGrabber.php

This file is a PHP executable file and contains the word “eval” (without quotes) and the word “urldecode(” (without quotes). The eval() function along with an encoding function like the one mentioned are commonly used by hackers to hide their code.

I think this is the offending portion:

	function _parse_dynamic_mfunc( $matches ) {
		$code1 = trim( $matches[1] );
		$code2 = trim( $matches[2] );
		$code = ( $code1 ? $code1 : $code2 );

		if ( $code ) {
			$code = trim( $code, ';' ) . ';';

			try {
				ob_start();
				$result = eval( $code );
				$output = ob_get_contents();
				ob_end_clean();
			} catch ( \Exception $ex ) {
				$result = false;
			}

			if ( $result === false ) {
				$output = sprintf( 'Unable to execute code: %s', htmlspecialchars( $code ) );
			}
		} else {
			$output = htmlspecialchars( 'Invalid mfunc tag syntax. The correct format is: <!-- W3TC_DYNAMIC_SECURITY mfunc PHP code --><!-- /mfunc W3TC_DYNAMIC_SECURITY --> or <!-- W3TC_DYNAMIC_SECURITY mfunc -->PHP code<!-- /mfunc W3TC_DYNAMIC_SECURITY -->.' );
		}

		return $output;
	}
  • This topic was modified 1 hour, 38 minutes ago by kalleankaco.
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sftp support for self host cdn

April 27, 2018, 8:28 am
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Replies: 0

I enabled self host cdn on the general settings of my site, and my server can only be accessible using server key. But under cdn settings, there is no option for server key.

How do I go about this?

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