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functions.php	2.63 KB
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speedycache.php	7.83 KB

Edit: readme.txt

=== SpeedyCache - Cache, Optimization, Performance ===
Contributors: softaculous
Tags: cache, minify, pagespeed, seo, cdn, wordpress cache, website cache, lazy loading, mobile cache, minify css, combine css, minify js, combine js, gzip, browser caching, render blocking js, preload, widget cache, softaculous, speedycache, performance
Requires at least: 4.7
Tested up to: 7.0
Requires PHP: 7.0
Stable tag: 1.3.9
License: GPLv3 or later
License URI: https://www.gnu.org/licenses/gpl-3.0.html

== Description ==

SpeedyCache is a WordPress cache plugin that helps you improve performance of your WordPress site by caching, minifying, and compressing your website.

You can find our official documentation at [https://speedycache.com/docs](https://speedycache.com/docs). We are also active in our community support forums on wordpress.org if you are one of our free users. Our Premium Support Ticket System is at [https://softaculous.deskuss.com](https://softaculous.deskuss.com)

[Home Page](https://speedycache.com "SpeedyCache Homepage") | [Support](https://softaculous.deskuss.com "SpeedyCache Support") | [Documents](http://speedycache.com/docs "Documents")

Other than caching SpeedyCache can also do the following:-
1. It can minify and combine CSS/JS giving even better optimization as it reduces the file sizes and reduces the HTTP requests to the server.
2. Eliminate render-blocking JavaScript resources helping your website to load faster.
3. Lazy load images so that the images can be requested only if they come into the viewport.
4. GZIP files to reduce the size of the file sent from the server.

== Free Features ==
* **Caching:** Storing copies of the web pages of the desktop version. Caching happens when a user visits a webpage on your website
* **Preload:** Preload makes sure the user always sees the cached version of your website as it periodically creates cache.
* **Combine CSS:** Combines CSS files present in the header of the page reducing HTTP requests.
* **Minify CSS:** Reduces the size of the CSS files.
* **Automatic Cache:** Creates cache of post when it gets deleted if preload is enabled.
* **Combine JS:** Combines JS files present in the header of the page reducing HTTP requests.
* **GZIP:** It applies GZIP compression on the files hence reducing the file size sent from the server.
* **Browser Caching:** Caches the website on the browser of the client for repeating visitors.
* **DNS-Prefetch:** DNS prefetch is a technique that improves website performance by resolving domain names in advance, before they are needed.
* **Disable Emojis:** You can remove the emoji inline CSS and wp-emoji-release.min.js.
* **Exclude:** You can exclude certain Pages, User-Agent, Cookies, CSS, or JS from being cached.
* **CDN:** CDN helps improve website speed by placing the static files of your cached on their network of servers hence helping deliver content faster at any point in the world.
* **Display Swap:** Adds display swap to Google font URL, so when Google font loads the font will stay visible this is enabled by default.
* **Purge Varnish:** If enabled it will purge Varnish cache, whenever cache from SpeedyCache is purged.
* **Gravatar Cache:** Host Gravatars on your server.
* *Improve Font Rendering:** Adding CSS property of text-rendering to prioritize speed of render of Fonts.

== GET SUPPORT AND PRO FEATURES == 
Get professional support and more features to make your website load faster with [SpeedyCache](https://speedycache.com/pricing)

== Pro Features:- ==

* **Image Optimization:** Image optimization is a way to convert an image to next-gen image formats like webp which load images faster on the web.
* **Instant Page:** It loads the page just before user clicks the link, reducing the page load time.
* **Google Fonts:** Google fonts are also seen as render-blocking so this feature helps load Google fonts asynchronously.
* **Local Google Fonts:** Cache the Google fonts to be compliant with the GDPR rules.
* **Lazy Load:** Loading all assets at once can make the page load slower hence lazy load helps by only loading certain resources when they come into the viewport.
* **Minify HTML:** It removes empty lines, line breaks, minifies inline Js And Css, removes comments and space in Tags
* **Minify JS:** Reduces JS file size.
* **Delay JS:** Delays the JS to load on user interaction to reduce or remove the issue of Unused JS.
* **Advanced Combine JS:** Combines JS files placed in the footer section helping reduce HTTP calls.
* **Render blocking JS:** Before rendering a page the browser parses the HTML to create a DOM tree and if an external script comes it has to stop and wait for the script to execute hence the rendering of the page ends up taking time, hence Render blocking JS feature helps in deferring the load of JS after the render has happened hence the first load get faster.
* **Delete Cache Stats:** Provides statistics about the cached files of Desktop or Mobile version and combined/ minified version of CSS and JS.
* **Mobile Cache:** Caches the mobile version of your website and shows that version on mobile devices.
* **Database Cleanup:** Database cleanup helps you free up your database storage from temporary data, trashed contents, and post revisions which may take a lot of your database storage.
* **PreConnect:** Preconnect improves website loading times by establishing early connections to third-party domains.
* **Preload:** Preload improves website performance by downloading resources in advance, before they are needed.
* **Critical CSS:** Extracts the CSS used by the page in the visible viewport at the time of load.
* **Unused CSS:** Removes the unused CSS, keeping the CSS that is being used by the paged, which reduces the size of CSS used on the page.
* **Object Cache:** It makes the object to persist by using Redis, to improve availability of the cache.
* **Bloat Remover:** Options to remove unnecessary features of WordPress or WooCommerce.
* **Image Dimension:** Adds dimensions to the image tag which does not have width or height, to reduce (CLS)Cumulative Layout Shift.
* **Lazy Render HTML:** User can lazy render HTML elements which are not in view-port.
* **Preload Critical Images:** Preload above-the-fold images to improve LCP(Largest Contentful paint).

== Caching ==
SpeedyCache caches the website by creating static files on the server and delivers those static files to most of the users who visit the website, The static files eliminate the heavy load of Querying the database for data hence the load of your website is faster.

You can preload as many pages as you want, and preloading caches the website in regular intervals of time to reduce the load on the server.

Deleting Cache on New/updating Post.
You can decide to delete the cache on the creation or updating of a post so that the cache can always stay updated.

== Minifying/Combining CSS and JS ==
SpeedyCache helps minify the JS and CSS hence it reduces the file sizes.
Combining JS combines the CSS and JS fines reducing the file count and making the server handle lesser requests.

== Cache Lifespan ==
Cache Lifespan is a way to schedule the deletion of cache.

== Exclude ==
Exclude is a way to prevent SpeedyCache from caching certain files/ user-agents/ cookies.

== CDN (Content Delivery Network) ==
CDN helps you host your static content on a distributed network optimized to deliver internet content faster it's not a replacement to a web host. It caches your files on the network edge and delivers the content to the user through the closest and fastest server.
SpeedyCache helps you integrate a CDN by rewriting the URLs of the static files you want to host on the CDN or in the Case of Cloudflare it helps with the purging of the cache on the Cloudflare servers.

== [Pro] Image Optimization ==
Image optimization is a way to convert your images from old formats like JPG and PNG to the new next-gen formats like webp which is designed with the web as the target platform to load images faster. webp images result in smaller and richer images that make the web faster.
We provide 3 ways to convert your images to webp.
GD(a PHP extension), Imagick(a PHP extension), and cwebp(a webp conversion utility from Google).

== [Pro] Bloat Remover ==
SpeedyCache has 12 bloat removal options which are listed below.
1. Disable Dashicons
2. Update Heartbeat
3. Limit Post Revisions
4. Disable XML-RPC
5. Disable Google Fonts
6. Disable jQuery Migrate
7. Disable RSS feeds
8. Disable Gutenberg
9. Disable OEmbeds
10. Disable Block Editor CSS
11. Disable Cart Fragments
12. Disable WooCommerce Assets

== [Pro] Database Cleanup ==
Data cleanup cleans the database by removing the following data:-
1. Post Revisions
2. Trashed Content
3. Trashed and Spam comments
4. Trackbacks and pingbacks
5. All Transient options
6. Expired Transient Options

== Frequently Asked Questions ==

= How to install SpeedyCache =
Go To your WordPress install -> Plugins -> Add New Button -> In Search Box, Look For SpeedyCache -> Click on Install.

= How will I know if my website got cached =
You can either go to the Delete Cache Tab where you will find Stats about the Cache or you can just visit your website in incognito mode and Inspect the HTML and at the last, you will find a comment saying that page got cached with time.

= How can I report security bugs? =
You can report security bugs through the Patchstack Vulnerability Disclosure Program. The Patchstack team help validate, triage and handle any security vulnerabilities. [Report a security vulnerability.](https://patchstack.com/database/vdp/speedycache)

== Screenshots ==

1. SpeedyCache Settings page
2. SpeedyCache Delete Cache page
3. CDN integration page
4. SpeedyCache Exclude page

== Changelog ==

= 1.3.9 (31st March 2026) =
* [Security Fix] There was a minor issue related to Combine CSS that has been fixed, was reported by Chiao-Lin Yu (Steven Meow) - Trend Micro
* [Task] Tested with WordPress 7.0

= 1.3.8 (24rd March 2026) =
* [Improvement] SpeedyCache now honors DONOTCACHEPAGE constant.
* [Bug-Fix Pro] wp_cache_flush_runtime was flushing Redis cache as well, this has been fixed to flush only the PHP object cache.
* [Bug-Fix Pro] Images converted to webp using "Modern Image Formats" plugin were shown in the list of images to be optimized in SpeedyCache Image optimization, this has been fixed.
* [Bug-Fix Pro] When doing Optimize all in image optimization, for some errors the response was being returned as null this has been fixed.
* [Bug-Fix] Cache lifespan was not deleting the directories, this has been fixed.
* [Bug-Fix] Password protected pages were getting cached once a correct password was entered, this has been fixed.
* [Bug-Fix] Combine JS was adding self closing script tag, this has been fixed.
* [Task] Calculation of memory used by File based cache was calculated on every settings page load. This has been changed to caching the file size in options table, for faster retrieval.

= 1.3.7 (18th December 2025) =
* [Feature Pro] Auto optimization for database added.
* [Improvement] Other and Bunny CDN will add it's URL as preconnect when enabled.
* [Bug Fix Pro] There was an issue with flushing of DB in Object cache that has been fixed.
* [Task] Tested with WordPress 6.9

= 1.3.6 (24th September 2025) =
* [Improvement Pro] Improved the handling of Object cache config.
* [Improvement] On some websites, the SpeedyCache settings page was taking longer to load this has been improved.
* [Bug-Fix Pro] There was an issue with Local Google fonts feature, which was causing generation of PHP Notices, that has been fixed.

= 1.3.5 (17 July 2025) =
* [Feature] Import and export of SpeedyCache settings.
* [Feature] You can now edit Speculation loading mode and eagerness.
* [Improvement Pro] Preload Resources now has an option to set device and fetch priority.
* [Improvement] Minor improvements to the user experience.
* [Task Pro] Auto Optimization now runs with a reduced scheduling gap of 30 seconds, and a limit of 10 images per page has been introduced to reduce load.
* [Bug-Fix Pro] An issue with reverting optimized images has been fixed.
* [Bug-Fix Pro] The 'Remove Google Fonts' feature was not working as expected. This has now been fixed.
* [Bug-Fix Pro] Previously, if the Redis server became unavailable, disabling Object Cache could lead to errors. This issue has been resolved.
* [Bug-Fix Pro] Some icons in image optimization tag were not loading, this has been fixed.
* [Bug-Fix] There was an issue deletion of term ancestors that has been fixed.
* [Bug-Fix] Previously, when Minify CSS was enabled, relative CSS URLs starting with /wp-content would break. This issue has now been fixed.
* [Bug-Fix] There was issue with Speculation rule was getting deferred, this has been fixed.
* [Bug-Fix] WooCommerce wc-cart-checkout-vendors-frontend.js script was breaking when minified, that has been fixed.
* [Bug-Fix] Exact exclude was not working this has been fixed.

= 1.3.4 (7th May 2025) =
* [Task] A PHP warning has been fixed.
* [Bug-Fix] Some characters were loading as ? when the page was cached, this has been fixed.
* [Bug-Fix] Cookie and Useragent excludes were not working properly that has been fixed.
* [Bug-Fix] Icon not loading properly when using Minify CSS has been fixed.
* [Bug-Fix Pro] Critical CSS and Unused CSS has been improved to reduce the load on server caused by the cron.
* [Bug-Fix Pro] Specualtionrule script has been excluded from delay JS, it was breaking the JS for some sites.
* [Bug-Fix Pro] Image optimize on upload was not working that has been fixed.
* [Bug-Fix Pro] Deletion of optimized image when the attachment is deleted was not working and has been fixed.

= 1.3.3 (11th April 2025) =
* [Feature] Now you can allow other user roles to delete cache.
* [Feature] Option to exclude page from cache if it has some shortcode.
* [Bug-Fix Pro] Disable Gutenberg was not working, this has been fixed.
* [Task] A few warnings have been fixed.
* [Task] jQuery deprecations have been fixed.
* [Task] Tested with WordPress 6.8

= 1.3.2 (2nd April 2025) =
* [Bug-Fix] Gzipped Cache was not getting deleted on post status change, this has been fixed.
* [Bug-Fix Pro] Self Hosted video was not getting lazy loaded but was making the video tag display as plain text, this has been fixed.

= 1.3.1 (27th March 2025) =
* [Improvement] Exclusion using Post ID now have links to the Page.
* [Bug-Fix] If zlib.output_compression was on with SpeedyCache GZIP then the page was getting double encoded, this has been fixed.

= 1.3.0 (19th March 2025) =
* [Improvement] Added option for deletion of Fonts and Gravatars on Cache Lifetime given cache lifetime is over 10 hours.
* [Improvement] We have improved the list of Selections for Delay JS.
* [Improvement Pro] Now you can also delay inline JS.
* [Improvement Pro] Added metabox to media to optimize single image.
* [Improvement-Pro] Now there will be a random prefix in Redis object keys, to prevent conflicts between sites.
* [Bug-Fix] GZIP encoding of cache file was not working was only serving GZIP through htaccess rules, this has been fixed.
* [Bug-Fix] There was an issue with Pagelayer post inline css background images not getting Auto Optimized that has been fixed.

= 1.2.9 (11th Feb 2025) =
* [Improvement] Now users can exclude pages from getting cached using Page, Post IDs.

= 1.2.8 (13th Jan 2025) =
* [Bug-Fix] There was an issue with Logged in user cache, that has been fixed.
* [Bug-Fix Pro] There was an issue with Defer JS, that has been fixed.
* [Bug-Fix Pro] The Defer JS exclude was not saving this has been fixed.
* [Improvement Pro] Some WEBP converters were setting the URL of the original images to .webp that has been taken care of.

= 1.2.7 (21st Nov 2024) =
* [Bug-Fix] Licensing fix

= 1.2.6 (19th Nov 2024) =
* [Task] Tested compatibility with WordPress 6.7.
* [Improvement] Support for WeGlot translation plugin.

= 1.2.5 (22th October 2024) =
* [Task] SpeedyCache has been updated to support PHP 7.0 and later, expanding its compatibility from PHP 7.3.
* [Bug-Fix] There was a bug related to jQuery which was making it unable to switch tabs which has been fixed.

= 1.2.4 (15th October 2024) =
* [Feature] Option to make cache lifespan run on a specific time.
* [Improvement] Handling cache for URI of non-ASCII characters.
* [Improvement] Deletion of related posts.
* [Improvement] Support for WBW Currency Switcher.
* [Improvement] Deletion of Cache on saving Menu.
* [Improvement] Deletion of cache of all the ancestors of the posts who's cache is being deleted.
* [Bug-Fix] There was an issue with expiring cache, which has been fixed.

= 1.2.3 (20th September 2024) =
* [Bug-Fix] There was issue with query string serving homepage's cache that has been fixed.
* [Bug-Fix] For a user the SpeedyCache admin requests type were getting overridden, SpeedyCache has been made to handle that.
* [Task] License handling improvements.

= 1.2.2 (3rd September 2024) =
* [Added] Deletion of Cache on comment status change.
* [Added] Admin Bar option to delete cache.
* [Added] Cache deletion on WooCommerce order completion.
* [Improvement] AutoCache has been improved(is enabled by default if preload is enabled).
* [Improvement] Cache Logs have been improved further.
* [Bug-Fix] There was an issue with saving Delay JS excludes that has been fixed.
* [Bug-Fix] There was an issue with excluding pages, that has been fixed.
* [Bug-Fix] In cache lifetime Mobile cache was not getting deleted, that has been fixed.

= 1.2.1 (27th August 2024) =
* [Improvement] Cache purge on post status change has been improved.
* [Bug-Fix] There was an issue with htaccess rule in case the admin username had a space.
* [Bug-Fix] There was an issue in which user was unable to open SpeedyCache settings page, that has been fixed.
* [Bug-Fix] There was an issue with serving Mobile specific cache that has been fixed.

= 1.2.0 (23nd August 2024) =
* [Improvement] The UI has been improved, by reducing some unnecessary options or making them default.
* [Improvement] CSS Minification has been improved.
* [Improvement] We now use Advanced cache, for better cache load performance.
* [Improvement] Cache Preloads have been improved, with less options to configure.
* This version has some breaking changes.

= 1.1.9 (26th July 2024) =
* [Security-Fix] A Security issue reported by Rafie Muhammad (Patchstack) has been fixed.

= 1.1.8 (16th July 2024) =
* [Task] Removed StackPath from CDN(as StackPath CDN was retired in September 2023)
* [Task] Tested with WordPress 6.6
* [Bug-Fix] There was an issue with deletion of Preloading setting that has been fixed.
* [Bug-Fix] There was an issue with enabling Precaching using URL which has been fixed.

= 1.1.7 (31st May 2024) =
* [Bug-Fix] There was an issue with Delay JS which has been fixed.
* [Bug-Fix] Deletion of cache was creating warnings which has been fixed.

= 1.1.6 (20th April 2024) =
* [Task] Changed the license to GNU GPLv3.
* [Bug-Fix] There was an issue with Minify HTML that has been fixed.
* [Bug-Fix] There was an issue with render blocking JS which has been fixed.

= 1.1.5 (25nd March 2024) =
* [Bug-Fix] There was an issue with preload that has been fixed.
* [Bug-Fix] There was a conflict with SuperPWA that has been fixed.
* [Bug-Fix] PHP Warnings have been fixed.
* [Task] Tested with WordPress 6.5.
* [Pro Feature] Option to exclude JS files from getting deferred.

= 1.1.4 (15th December 2023) =
* [Security] There was a privilege check which has been fixed. (Reported by Lucio Sá)
* [Bug-Fix] There were some warnings when deleting the cache which have been fixed.
* [Improvement] While reverting all optimized images if the image count was 50+ then the images were queued one image per schedule. Which has been changed to a batch of 100 images per schedule. And the limit for schedule has been increased to 100 from 50.

= 1.1.3 (30th November 2023) =
* [Security] A subscriber could trigger a create cache request which has been fixed.
* [Bug-Fix] There was an issue with Object Cache not able to save data in Redis that has been fixed.

= 1.1.2 (16th November 2023) =
* [Task] Tested on WordPress 6.4.
* [Bug-Fix] In Lazy Load DOMSubTreeModified(which is a deprecated Browser API) has been changed to Mutation Observer.
* [Bug-Fix] Dynamic Property warnings have been fixed for PHP 8.2.

= 1.1.1 (19th October 2023) =
* [Structural Change] SpeedyCache Pro will now require the free version to be installed for it to to work.
* [Feature] Text Rendering: It tells the browser to prioritize rendering speed over legibility and geometric precision.
* [Feature] DNS-Prefetch: It is a technique that tells the browser to resolve domain names in advance, which can speed up website loading.
* [Pro-Feature] Preconnect: It is a technique that tells the browser to establish connections to external resources in advance, which can speed up website loading.
* [Pro-Feature] Preload Resources: It is a technique that tells the browser to start downloading resources in advance.
* [Pro-Feature] Unused CSS: Removes the unused CSS to reduce the size of CSS being loaded on the page.
* [Task] We have created a new section in Settings tab "Preloading" it contains all the options related to preloading. Hence Instant Page, Preloading Critical Images, have been shifted to this section.
* [Task] Added option to set number of images to skip from lazy loading from top of the page.
* [Task] Instant page has been upgraded and improved.
* [Bug-Fix] When Mobile Theme was enabled a .mobile file was being created as a cache which has been fixed.

= 1.1.0 (8th August 2023) =
* [Feature] Localize Gravatar: Caches Gravatar on your server.
* [Pro-Feature] Preload Critical Images: Preloads above-the-fold images to improve LCP(Largest Contentful paint).
* [Pro-Feature] Lazy Render HTML elements: It helps in reducing the rendering time of the HTML elements, which are not in the viewport.

= 1.0.9 (28th July 2023) =
* [Pro-Feature] Image Dimensions: Add Image dimensions to Local Images if height or width is not present for it.
* [Bug-Fix] Precache was causing a fatal error for some users while uploading via media, which has been fixed now.
* [Bug-Fix] Delay JS was breaking HTML for some users that has been fixed.

= 1.0.8 =
* [Tweak] Updated a nag, to notify user to test Page Speed.
* [Bug-Fix] There was an issue with Combine CSS that has been fixed.

= 1.0.7 =
* [Feature] Added Test Mode, for a user to test the options before pushing it to the live site.
* [Feature] Test Score, now user can get Pageinsight scores of their website on how it will score with the cache settings enabled.
* [Feature][Pro] Bloat Remover, we have added more than 10 options to remove bloat and speed up your WordPress site.
* [Bug-Fix] There was an issue with Minify JS it was breaking some sites, but that has been fixed.
* [Bug-Fix] Instant Page was conflicting with JS of other files which has been fixed.

= 1.0.6 =
* [Bug-Fix] There was an issue while activating the Plugin for some users, default settings weren't getting saved properly.
* [Bug-Fix] SpeedyCache was minifying already minified CSS/JS files, that has been fixed.
* [Tweak] Added a reminder to enable SpeedyCache if it is activated.

= 1.0.5 =
* [Feature][PRO] Object Cache: Reduce the count of SQL queries you need to make by caching it in a persistent Cache like Redis.
* [Bug-Fix] There was an issue in Preload settings in which the order of the preload was not getting updates as expected which has been fixed.

= 1.0.4 =
* [Bug-Fix] There was an undefined index issue with Plugins that have custom post types that have been fixed.
* [Bug-Fix] WP_User_Query::query was called incorrectly PHP Notice has been fixed.
* [Bug-Fix] There was a warning related to an index Brand Data.
* [Bug-Fix] [Pro] The License status was not updating immediately after the license was submitted that has been fixed.
* [Task] Tested with WordPress 6.2.

= 1.0.3 =
* [Bug-Fix] When saving a product in Woocommerce if the cache was enabled on SpeedyCache, the user was getting redirected to a JSON response page, which has been fixed.
* [Bug-Fix] When saving a product there was a Security Check failed warning, that has been fixed. 
* [Bug-Fix] There was an issue with deleting SpeedyCache, it has been fixed.
* [Bug-Fix] Disabling the Cache for the single page was not working, that has been fixed.

= 1.0.2 =
* [Feature] Purging Varnish cache when cache from SpeedyCache is purged.
* [Feature][Pro] Display swap for Google fonts to keep fonts visible on a load of Google fonts.
* [Feature][Pro] Critical CSS: Now SpeedyCache can extract critical CSS from your page to remove Render Blocking CSS to improve page speed.
* [Tweak] The Cache folder structure has been updated, to follow common practice.
* [Bug-Fix] Cloudflare prompt use to pop-up continuously if user website was being proxied through Cloudflare that has been fixed by converting that popup to an alert.
* [Bug-Fix] PHP 8.2 warnings and deprecations have been fixed.
* [Bug-Fix] There was an issue while clearing Cache if you have disabled cache in a meta box.
* [Bug-Fix][Pro] There was an issue with LazyLoading Iframes that has been fixed.
* [Bug-Fix][Pro] There was an issue with Delete Cache logs that has been fixed.
* [Bug-Fix][Pro] There was an issue with linking License that has been fixed.

= 1.0.1 =
* [Bug-Fix] Cache folder was not being created at activation that has been fixed.
* [Bug-Fix] There was a PHP Warning that has been fixed.

= 1.0.0 =
* First release