• Getting Technical Support

  Getting Technical Support If you're experiencing issues or need additional help, you may reach out to chat support in the bottom right hands side of our website. If a live agent is unavailable, the message will be converted to a support ticket and you'll get a response via email. If you're having a technical issue or conflict, please leave temporary admin access and details of the issue you're experiencing by filling out this form.Popular

• Whitelisting WP Compress for Uninterrupted Service

  Whitelisting User Agent and IPs for Uninterrupted Service Encountering issues like "Invalid Access Key," "Cannot Communicate Error" in your portal, or "Unable to Optimize Images," and "Critical CSS blocked from running" could be due to our servers being blocked from communicating with your website. This could be a result of certain security restrictions. You can resolve this by whitelisting our user agent and the IP addresses we use. Steps to Whitelist User Agent and IP Addresses **1. WhSome readers

• Images or Scripts Not Loading with Custom Domain (CNAME)

  Images or Scripts Not Loading with Custom Domain (CNAME) I get an error message saying that the server could not prove that it is cdn.mysite.com since the security certificate is from *.zapwp.com Error Message: NET::ERR_CERT_COMMON_NAME_INVALID The Solution The CNAME did not propogate before you linked the account - you can simply reset and re-add it via the plugiSome readers

• How to Exclude JavaScript from Delay JS

  How to Exclude From Delay JS You may want to exclude a file from Delay JS if you're site is facing display issues, UX interactivity problems or console errors that you'd like to resolve. While more advanced, a great first step is to check the console log and exclude the file(s) that are notated To find the exclude options, follow this guide or simply click the gear next to DelayJS! ![](https://storage.crisp.chat/users/heSome readers

• How to use CNAME with Cloudflare DNS

  How to use CNAME with Cloudflare DNS This guide provides step-by-step instructions for setting up a CNAME record in Cloudflare DNS for WP Compress CDN and making sure it is NOT proxied. Log in to your Cloudflare account and select the domain you want to manage. Go to the DNS section in the Cloudflare dashboard. Click the Add Record button. Select CNAME as the type of record you want to add. Enter the name of the subdomain you want to create a CNAME for in thSome readers

• Why are my images not showing as WebP?

  We aim for WebP generation and delivery to be automatic; however, in certain situations WebP delivery may have a conflict. The first step is to right click on the image, hit save and see if the file actually is WebP as with our URL structure, it may appear to be .png by conventional naming, but the extension you see is for the ORIGINAL file via the CDN || For example: [https://wpcompresscomfa428.zapwp.com/q:intelligent/retina:false/webp:true/w:1440/url:https://wpcompress.com/wp-content/Few readers

• Images Not Showing in Safari

  If your site ever looks like this in Safari, don't panic! It's typically just an issue with WebP images or outdated cache files being served. | Quick Fix - Turn OFF the WebP image toggle, then clear caches. || Full solution - if you want to continue using WebP, please clear all cache plugins (even server side caching) to make sure the latest WP Compress JavaScript canFew readers

• How can I exclude an image, asset or script?

  How can I exclude an image, asset or script? To exclude an image, asset or other file type from the CDN, delay JS, critical CSS or any other applicable setting, simply go into your plugin settings panel or portal and click the tab of what you'd like to exclude: In this example, we'll pick CDN Delivery - from there, click the GEAR ICON ![](https://storage.crisp.chat/users/hFew readers

• Images not showing or showing up blank

  Images not showing or showing up blank Don't worry, we'll make sure you're all set and your images are showing soon! Typically it's a conflict with another lazy loading option, such as "lazy" coming from a theme, performance, cache plugin or even native wordpress. If you're facing issues with blank images, please first turn off lazy and adaptive images to see if images return! || If your lazy loading is OFF and it's not showing, please try turning it ON as that can also fix things!Few readers

• Troubleshooting Critical CSS Not Generating (Pages Not Optimized)

  Troubleshooting: Critical CSS Not Generating If you're experiencing issues with the generation of Critical CSS on your website, follow these troubleshooting steps to identify and resolve common obstacles. Check for Bot Protection, Security Plugins, and Firewalls Critical CSS generation might be blocked by security measures on your server or within your application. EnsureFew readers

• How to exclude a specific URL (login page, cart, etc) from WP Compress

  Exclude Specific URLs from Optimization To bypass optimization for specific pages like custom login pages, shopping carts, or other pages that may conflict with WP Compress, follow these steps: Go to Advanced Settings in your WP Compress dashboard. Navigate to Other Optimizations. ![](https://storage.crisp.chat/users/helpdesk/website/49a2bcd521bcc400/screen-shoFew readers

• Reduce Initial Server Response Time Flag in Google PageSpeed Insights

  Reduce Initial Server Response Time Flag in Google PageSpeed Insights If you see a warning like this and you have our cache active, then something is not correct: If this is the case, please try re-testing the page so the cache would have generated - you can check in smart optimization as well: ![](https://storage.crisp.chat/users/helpdesk/website/49a2bcd521bcc400/screen-shot-2Few readers

• What does "CNAME Limiter introduced because of free SSL Limits" mean?

  When setting up an SSL, our provider, letsencrypt blocks 5 failed attempts in a 7 day span - so we now limit that before it happens to assure you don't get blocked out of our control. Please see https://letsencrypt.org/docs/rate-limits/ for more information. | If you get limited, please do reach out and we'll confirm it's set up propeFew readers

• Using the CDN with Hide My WP Ghost

  Using the CDN with Hide My WP Ghost Hide My WP Ghost can change the default paths, so for compatibility you'd need to treat it as it's an external or different URL for the plugin to find your CDN assets! | Simply enable EXTERNAL URLS and you'll be good to go!Few readers

• How to Fix High Server Response Times (TTFB)

  Guide to Improving TTFB with WP Compress Follow these steps to reduce your TTFB: Activate the Recommended Mode in WP Compress Start with the recommended settings in WP Compress. This should solve most issues instantly. WP Compress > Settings > General > Optimization Mode > Recommended Ensure Advanced Caching is ON Make sure that advanced caching is activated. If not, turn it on. WP Compress > Settings > CDN > Advanced Caching > ON **Check your / DirectoFew readers

• Whitelisting with CleanTalk

  Then search WPCompress and make sure you hit WHITELIST Alternatively you can whitelist:Few readers

• Blurry Images in Modula Gallery

  🛠️ Fix for Blurry Images in Modula Gallery If your images in Modula Gallery appear blurry, it’s likely due to the default thumbnail size being set too small. But don’t worry – this is an easy fix! Follow the steps below to update the settings and display sharp, high-quality images. Why Are Images Blurry? Modula uses the default thumbnail size for your images. If this size is too small, it can result in blurry visuals when the thumbnails are stretched to fit your gallery layout.Few readers

• Asking Your Hosting Provider to Whitelist WP Compress

  If you’re experiencing issues with WP Compress due to blocked requests, you can send the following message to your hosting provider: Subject: Request to Whitelist WP Compress for Uninterrupted Service Dear [Hosting Provider's Support Team], I am currently using WP Compress, a performance optimization tool for my website. However, I am experiencing issues such as blocked image optimization, invalid access key errors, or delays in Critical CSS generation. It appears these issueFew readers

• What happens if I see incorrect image sizes?

  What Should I Do If I See Incorrect Image Sizes? When calculating the correct responsive image size, we strive to provide pixel-perfect images through careful optimization. However, some themes or plugins may override the new sizing in the srcset attribute as they attempt to implement their own responsive image versions. In most cases, this should not cause issues. However, if you notice incorrect image sizes, as shown below, you can disable their generated srcset and rely on our pixel-pFew readers

• Must-Have Cookie Support

  Setting WP Compress CDN and Optimizer.js as Essential in Must-Have Cookie Support To ensure proper functionality of your website while remaining GDPR-compliant, it's important to set WP Compress CDN and optimizer.js as Essential cookies. This is because these domains are critical for delivering optimized assets (like scripts, images, and stylesheets) and ensuring the site runs efficiently. Why Mark These as Essential? CDN (Content Delivery Network): Delivers optimized aFew readers

• How to re-connect an existing website

  How to Reconnect an Existing Website: If you’re looking to transfer or refresh the connection of your website with WP Compress, follow these simple steps. This process is useful when migrating a website from one account to another, or if you’re troubleshooting connection issues. Delete the site from the portal account: Generate a new access key in the WP Compress manFew readers

• Updating WooCommerce Cart Settings

  If you're using WP Compress with Cloudflare and WooCommerce, you may notice items added to the cart disappear when navigating to another page, or the cart count showing incorrect values. This is caused by Cloudflare caching pages it shouldn't — specifically the add-to-cart request — before session cookies can be set on the browser. The fix is straightforward in most cases. Step 1: Enable AJAX Add to Cart AJAX add to cart is the safest method to use alongside any caching setup — it firFew readers

• Using WP Compress With LiteSpeed Server & LiteSpeed Cache

  If your host uses a LiteSpeed server and has installed the LiteSpeed Cache plugin, you can still use WP Compress (including Page Cache and Aggressive Mode) without any issues. The key idea: | Keep the LiteSpeed Cache plugin active so WP Compress can hook and purge the server-side cache, but let WP Compress handle the optimization and caching. Quick summary Leave the LiteSpeed Cache plugin active. Enable WP Compress Page Cache and turn on **Aggressive MFew readers

• Using WP Compress with Divi (Best Practices)

  Divi is one of the most popular page builders we support. However, Divi has recently introduced its own built-in performance settings. To get the fastest speeds and avoid site-breaking conflicts, it is crucial that you do not duplicate features. You should have either Divi OR WP Compress handle the optimization—not both. Option 1: Maximum Performance (Recommended) For the best Core Web Vitals and loading times, we recommend letting WP Compress handle all optimization. Our external infrFew readers

• Slider Revolution: Disable Built-in Optimization Settings

  Slider Revolution includes its own built-in performance optimization settings. When using WP Compress, these should be disabled to avoid conflicts — WP Compress handles all optimization and the two systems will interfere with each other if both are active. How to Disable Slider Revolution Optimization Settings In your WordPress admin, go to Slider Revolution in the left menu Click the Global Settings icon (gear icon) in the top toolbar Locate the two sections below andFew readers