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@litetim I use cron.

But I’ve checked and, on both versions, 7.5 and 7.6, this if block is executed when using cron.

@litetim, unfortunately the issue isn’t resolved.

First, I noticed I have the same issue on another website with a similar setup.

Then, I got a notification from Wordfence saying the purge.cls.php on the original website we discussed about doesn’t match the one in the WordPress repository for this version.

I completely removed the plugin and reinstalled the it, and the issue is back.

It seems that the only reason it worked is that somehow the purge.cls.php file was outdated (maybe something I’ve done while debugging).

In GitHub, I see a lot of changes were made to this file in the latest update—maybe the issue lies there.

@litetim, I don’t know why, but it seems to be working now. Hopefully, it will keep working. For now, thanks for your help.

Hi, @litetim.

I’m not sure I understand your last message.

I don’t see any logs in LSC Purge Logs.

Does it mean you confirm the purge isn’t happening?

One thing I noticed is that you added the h4l_crawl_sitemap in functions.php , while I added it in the MU plugin.

How do you deduce that the clear is not running?

I have automated test in my code:

$x_litespeed_cache = wp_remote_retrieve_header($server_response, 'x-litespeed-cache');

                // Not purged
if ($x_litespeed_cache !== 'miss') {
                    wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $url . ' - x-litespeed-cache: ' . $x_litespeed_cache);
}

I also confirmed it by visiting the website and checking LiteSpeed’s HTML comment.

Thanks, @litetim.

– Is the cron running?

Yes. I get email notifications from it, as you can see in the code I shared.

– Does the function h4l_crawl_sitemap get executed?

Yes.

I enabled the debug, but nothing appears.

Did you try litespeed_purge_all in a cron?

@litetim here is the code. It worked for a long while.

add_action('h4l_crawl_sitemap', 'h4l_crawl_sitemap');

function h4l_crawl_sitemap() {
    // NOTE: Bypassed with a Cloudflare cache rule
    // https://dash.cloudflare.com/c82b4dfd2f76bf63583a85bc1b852bfc/hobbies4.life/caching/cache-rules
    $server_cache_crawler_user_agent = 'ServerCacheCrawler';
    $edge_cache_crawler_user_agent = 'EdgeCacheCrawler';

    $admin_email = get_option('admin_email');

    $posts_page_id = get_option('page_for_posts');
    $posts_page_url = get_permalink($posts_page_id);

    // TODO: Create a random test instead?
    $posts_page_server_response = wp_remote_get($posts_page_url, ['user-agent' => $server_cache_crawler_user_agent]);

    $x_litespeed_cache = wp_remote_retrieve_header($posts_page_server_response, 'x-litespeed-cache');
    $cf_cache_status = wp_remote_retrieve_header($posts_page_server_response, 'cf-cache-status');

    if ($x_litespeed_cache !== 'hit' || $cf_cache_status !== 'DYNAMIC') {
        wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $posts_page_url . ' - x-litespeed-cache: ' . $x_litespeed_cache . '; cf-cache-status: ' . $cf_cache_status);
    }

    $sitemap_index_url = get_sitemap_url('index');

    $response = wp_remote_get($sitemap_index_url);

    if (is_wp_error($response)) {
        wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $sitemap_index_url . ': ' . $response->get_error_message());

        return;
    }

    $sitemap_index = simplexml_load_string(wp_remote_retrieve_body($response));

    if ($sitemap_index === false) {
        return;
    }

    do_action('litespeed_purge_all');

    foreach ($sitemap_index->sitemap as $sitemap_property) {
        $sitemap_url = (string) $sitemap_property->loc;

        $response = wp_remote_get($sitemap_url);
        $sitemap = simplexml_load_string(wp_remote_retrieve_body($response));

        foreach ($sitemap->url as $url_property) {
            $url = (string) $url_property->loc;

            $blocking = ($url === $posts_page_url) ? true : false;
            $method = ($url === $posts_page_url) ? 'GET' : 'HEAD';

            $server_response = wp_remote_get($url, ['method' => $method, 'blocking' => $blocking, 'user-agent' => $server_cache_crawler_user_agent]);

            wp_remote_get($url, ['method' => 'HEAD', 'blocking' => false, 'user-agent' => $edge_cache_crawler_user_agent]);

            if (is_wp_error($server_response)) {
                wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $url . ': ' . $server_response->get_error_message());
            }

            // Sanity check
            if ($url === $posts_page_url) {
                $x_litespeed_cache = wp_remote_retrieve_header($server_response, 'x-litespeed-cache');

                // Not purged
                if ($x_litespeed_cache !== 'miss') {
                    wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $url . ' - x-litespeed-cache: ' . $x_litespeed_cache);
                } else {
                    $x_litespeed_cache = wp_remote_retrieve_header(wp_remote_get($url, ['method' => 'HEAD', 'user-agent' => $server_cache_crawler_user_agent]), 'x-litespeed-cache');

                    // Not cached
                    if ($x_litespeed_cache !== 'hit') {
                        wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $url . ' - x-litespeed-cache: ' . $x_litespeed_cache);
                    } else {
                        //$check = 'passed';
                    }
                }
            }

            $system_load = sys_getloadavg();

            usleep(($system_load[0] * 1000000) / 20); // microseconds
        }
    }

    // Final random check
    $products = wc_get_products(['limit' => 1, 'orderby' => 'rand', 'status' => 'publish']);

    if (!empty($products)) {
        $random_product = $products[0];

        $url = $random_product->get_permalink();

        $edge_response = wp_remote_get($url, ['method' => 'HEAD', 'user-agent' => $edge_cache_crawler_user_agent]);
        $server_response = wp_remote_get($url, ['method' => 'HEAD', 'user-agent' => $server_cache_crawler_user_agent]);

        $cf_cache_status = wp_remote_retrieve_header($edge_response, 'cf-cache-status');
        $x_litespeed_cache = wp_remote_retrieve_header($server_response, 'x-litespeed-cache');

        if ($x_litespeed_cache !== 'hit' || $cf_cache_status !== 'HIT') {
            wp_mail($admin_email, __FUNCTION__, '[' . __LINE__ . '] ' . $url . ' - x-litespeed-cache: ' . $x_litespeed_cache . '; cf-cache-status: ' . $cf_cache_status);
        } else {
            $check = 'passed';
        }
    }

    if (function_exists('aal_insert_log')) {
        $args = [
            'action' => 'created',
            'object_name' => 'Sitemap Crawled: ' . ($check ?? 'failed'),
            'object_type' => 'Plugins'
        ];

        aal_insert_log($args);
    }
}

Thanks, @jamesosborne.

It’s not an issue in the sense that it doesn’t prevent tracking. But ad blockers are more likely to block the current EU-UK GTG implementation. And, if I understand correctly, one of the main goals of GTG is to prevent ad blockers from interrupting.

In other words, in the EU-UK, the implementation falls back to a regular non-GTG implementation, at least according to my understanding.

Hi, @maybellyne. Thanks for your reply.

I see wpseo_titles and metadesc-home-wpseo in the wp_options table.