Title: Retina Stripper Author: David Favor Published: 18 maaie, 2016 Last modified: 18 maaie, 2016 --- Search plugins Dizze plugin **is net hifke mei de lêste 3 grutte releases fan WordPress** . It kin net langer wurde ûnderhâlden of stipe en kin kompatibiliteitsproblemen hawwe as it wurdt brûkt mei resinte ferzjes fan WordPress. ![](https://s.w.org/plugins/geopattern-icon/retina-stripper.svg) # Retina Stripper Troch [David Favor](https://profiles.wordpress.org/dfavor/) [Download](https://downloads.wordpress.org/plugin/retina-stripper.1.4.zip) * [Details](https://fy.wordpress.org/plugins/retina-stripper/#description) * [Resinsjes](https://fy.wordpress.org/plugins/retina-stripper/#reviews) * [Ynstallaasje](https://fy.wordpress.org/plugins/retina-stripper/#installation) * [Ûntwikkeling](https://fy.wordpress.org/plugins/retina-stripper/#developers) [Stypje](https://wordpress.org/support/plugin/retina-stripper/) ## Beskriuwing For now only occurrences of the [retina.js](http://imulus.github.io/retinajs) script are dequeue + deregister. If you identify other Retina related scripts open a support ticket + note the name. I’ll add any other identified scripts here, to strip them out also. ### Problems Serving Retina Images Some of these problems include… #### Retina Image File Size + Mobile Retina images have massive size. If you’re running a Food Porn blog or Image Hosting site, this might be okay. Otherwise, likely your visitor on page time will decrease + conversions tank. If you’re running a Click Arbitrage site or target Mobile devices, which may be on 3G networks or simply have under powered CPUs or little memory. This occurs as size of Retina images eat up all your visitor’s connection bandwidth, then require heavy CPU + memory usage to render. #### Retina Image 404s On Server Most sites serving Retina images, do so via the horribly simplistic [retina.js](http://imulus.github.io/retinajs) library. Unfortunately this script works by… 1) Extracting every DOM tag + rewriting the URL as image-name@2X.extension back into the DOM. 2) For many sites 100% of these image-name@2X.extension file access result in a 404 (missing page) error. Then [retina.js](http://imulus.github.io/retinajs) will walk the DOM again, removing the @2X from images + the image file fetch begins again. Since this process runs via AJAX, instantaneously page load resource usage can spike very high. 3) WordPress caching plugins specifically avoid caching 404 errors. This is intentional. The idea being, once you notice 404s, you’ll fix them. If 404s were cached, every permanent + transient 404 error would require a manual cache flush, to clear the cache object, so the fixed page could then reach visitors. 4) Thus every 404 @2X image served generates what tends to be an extremely high resource intensive page view… all for nothing… 5) If you have 20 images on a page you’ll generate 20x 404s. You can see when this can lead to extreme dips in performance, which are hard to diagnose, unless you have a Server Savant doing daily log studies with logtop to monitor page view patterns. Some servers where I host client sites showed 90%+ of all page accesses were 404s to Retina images. As traffic spends or natural traffic increase, 404s increase, starving Apache + Database till eventually all visitors see become Apache 500 errors + Database Connection Errors. ### Plugin History This code was originally written to serve my many private hosting clients. Check [http://FastStableHosting.com]http://FastStableHosting.com WordPress speedups. This site is a work in process, where my goal is to converge all the many checklists I’ve published over the years cohesively + retire all other site with related WordPress performance boosting tips. Material presented on this site is based on testing, rather than drivel + myth which pollutes the entire WordPress ecosystem, at every turn. If you wonder why you keep reading how to speed up your site + nothing seems to make any difference, likely your reading content written by posers. ## Ynstallaasje Best to just install through the WordPress admin panel. This plugin has no database access, so will install via a recursive sftp/ftp file put. ## FAQ Have a question? Post it under the Support Tab + I’ll add it to the FAQ along with my answer. Think Twice About Asking Me To Host Your Site If you’re generating significant daily profit, we might work well together. If you have a hobby site or proof of concept site, likely we’re a poor fit. In other words, Fast + Stable Hosting is expensive, which is why it’s scarce as Purple Lemmings, who are smart enough to stand aside + let the others head over the cliff edge. Think Twice About Contacting Me Outside This Plugin’s WordPress Support Thread Consider this. If I’m consulting with you for an hour, that’s an hour of time invested with you, rather than one of my personal projects or assisting one of my other clients. Before you contact me, be clear this will be a paid consulting conversation. So before you contact me, be sure you’re crystal clear about out topic, so we can optimize our time. ## Resinsjes D’r binne gjin resinsjes foar dizze plugin. ## Meiwurkers & amp; Untwikkelders “Retina Stripper” is iepen boarne software. De folgjende minsken hawwe bydroegen oan dizze plugin. Meiwurkers * [ David Favor ](https://profiles.wordpress.org/dfavor/) [Oersette “Retina Stripper” yn jo taal.](https://translate.wordpress.org/projects/wp-plugins/retina-stripper) ### Ynteressearre yn ûntwikkeling? [Blêdzje troch de koade](https://plugins.trac.wordpress.org/browser/retina-stripper/), besjoch de [SVN-repository](https://plugins.svn.wordpress.org/retina-stripper/) , of abonnearje op it [ûntwikkelingslogboek](https://plugins.trac.wordpress.org/log/retina-stripper/) troch [RSS](https://plugins.trac.wordpress.org/log/retina-stripper/?limit=100&mode=stop_on_copy&format=rss). ## Feroaringslog #### 1.0 * 2016-05-16 * Initial Release #### 1.1 * 2016-05-18 * Minor readme file formatting fixes #### 1.2 * 2016-05-18 * Minor readme file formatting fixes #### 1.3 * 2016-05-18 * Minor readme file formatting fixes #### 1.4 * 2016-05-18 * Bumped readme.txt “Stable Tag” + plugin.php “Version” to match + show up correctly on [http://WordPress.org](http://WordPress.org) download page ## Meta * Version **1.4** * Last updated **10 jier yn ôl** * Active installations **10+** * WordPress version ** 3.5.0 of heger ** * Tested up to **4.5.33** * Language * [English (US)](https://wordpress.org/plugins/retina-stripper/) * Tags * [performance](https://fy.wordpress.org/plugins/tags/performance/)[retina](https://fy.wordpress.org/plugins/tags/retina/) [server](https://fy.wordpress.org/plugins/tags/server/)[speed](https://fy.wordpress.org/plugins/tags/speed/) * [Avansearre werjefte](https://fy.wordpress.org/plugins/retina-stripper/advanced/) ## Wurdearrings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/retina-stripper/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/retina-stripper/reviews/) ## Meiwurkers * [ David Favor ](https://profiles.wordpress.org/dfavor/) ## Stypje Hast wat te sizzen? Help nedich hawwe? [Besjoch stipefoarum](https://wordpress.org/support/plugin/retina-stripper/)