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nclude a 60 day money back guarantee and free automated migration of your existing wordpress site wp engine also has more advanced hosting options so they re an option that could grow with you sign up for wp engine using this link and you ll save 20 off your first payment professional site pantheon got their start as a drupal host but have taken their innovative container based hosting technology to the wordpress market as a developer i appreciate their git based development flow their powerful terminus command line client and their built in and dead simple dev test live environments on the higher level plans you get multidev which lets you spin up a sandboxed development environment for a specific git branch this means you can send clients and testers urls for testing new features in isolation before they are merged back into the main code branch awesome their professional tier starts at 100 month which isn t cheap but your developers will love their deployment tools their dev test live code staging flows and their git based deploys to the development environment pantheon is a great choice for professional wordpress sites that have a developer on staff or on retainer check out pantheon s professional wordpress hosting plans enterprise site pagely has been around since 2006 they started the whole wordpress dedicated hosting marketplace when they started they targeted a range of wordpress sites but now they focus on enterprise hosting this is where big brands go for custom wordpress hosting solutions the folks at pagely know wordpress well and will be an excellent hosting partner for your enterprise wordpress site their vps solutions start at 499 month but they also have a shared server plan called neutrino for 99 month get started with pagely enterprise hosting how i picked my method here was simple i thought about how i answer if a friend or a client asks me for hosting advice i found that i regarded sites as fitting in one of five categories then i considered which hosts offer the best service and value in those categories and picked these four hosts after i had made my picks and written about their benefits i went to see which of my picks had affiliate programs three of them did and one did not i used affiliate links for those that offered them and a direct link for the one that did not using affiliate links to sign up for their service will earn me some money but you can of course just go directly to their sites if you like i stand by these recommendations either way i ll write a new post in 2017 with my new picks let me know on twitter what hosts are your favorites and why november 1 2016 november 2 2016 mark jaquith hosting pagely pantheon siteground web development web hosts wordpress wp engine tips for hosting wordpress on pantheon pantheon has long been hosting drupal sites and their entry into the wordpress hosting marketplace is quite welcome for the most part hosting wordpress sites on pantheon is a dream for developers their command line tools and git based development deployments and automatic dev test live environments with the ability to have multiple dev environments on some tiers are powerful things if you can justify the expense and they re not cheap i would encourage you to check them out first the good stuff git powered dev deployments this is great just add their git repo as a remote you can still host your code on github or bitbucket or anywhere else you like and deploying to dev is as simple as git push pantheon dev master command line deployment to test and live pantheon has a cli tool called terminus that can be used to issue commands to pantheon including giving you access to remote wp cli usage you can do stuff like deploy from dev to test terminus site deploy site yoursite env test from dev cc or from test to live terminus site deploy site yoursite env live from test clear out redis terminus site redis clear site yoursite env yourenv clear out varnish terminus site clear caches site yoursite env yourenv run wp cli commands terminus wp option get blogname site yoursite env yourenv keep dev and test databases uploads fresh when you re developing in dev or testing code in test before it goes to live you ll want to make sure things work with the latest live data on pantheon you can just go to workflow clone and easily clone the database and uploads called files on pantheon from live to test or dev complete with rewriting of urls as appropriate in the database no caching plugins you can get rid of batcache w3 total cache or wp super cache you don t need them pantheon caches pages outside of wordpress using varnish it just works including invalidating urls when you publish new content but what if you want some control well that s easy just issue standard http cache control headers and varnish will obey php function my_pantheon_varnish_caching if is_user_logged_in return age false home page 30 minutes if is_home get_query_var paged 2 age 30 product pages two hours elseif function_exists is_product is_product age 120 if age false pantheon_varnish_max_age age function pantheon_varnish_max_age minutes seconds absint minutes 60 header cache control public max age seconds add_action template_redirect my_pantheon_varnish_caching and now some unclear stuff special wp config php setup some things just aren t very clear in pantheon s documentation and using redis for object caching is one of them you ll have to do a bit of work to set this up first you ll want to download the wp redis plugin and put its object cache php file into wp content update apparently this next step is not needed next modify your wp config php with this redis if isset _env cache_host globals redis_server array host _env cache_host port _env cache_port auth _env cache_password boom now redis is now automatically configured on all your environments setting home and siteurl based on the http host header is also a nice trick for getting all your environments to play but beware yes www and no www issues so as to not break wordpress redirection between those variants you should massage the host to not be solidified as the one you don t want for non www domains remove leading www site_server preg_replace www _server http_host you re on your own for the yes www version set urls define wp_home http site_server define wp_siteurl http site_server so those environment variables are pretty cool huh there are more database define db_name _env db_name define db_user _env db_user define db_password _env db_password define db_host _env db_host _env db_port keys define auth_key _env auth_key define secure_auth_key _env secure_auth_key define logged_in_key _env logged_in_key define nonce_key _env nonce_key salts define auth_salt _env auth_salt define secure_auth_salt _env secure_auth_salt define logged_in_salt _env logged_in_salt define nonce_salt _env nonce_salt that s right you don t need to hardcode those values into your wp config let pantheon fill them in appropriate for each environment for you and now some gotchas lots of uploads lots of problems pantheon has a distributed filesystem this makes it trivial for them to scale your site up by adding more linux containers but their filesystem does not like directories with a lot of files so let s consider the wordpress uploads folder usually this is partitioned by month on pantheon if you start approaching 10 000 files in a directory you re going to have problems keep in mind that crops count towards this limit so one upload with 9 crops is 10 files 1000 uploads like that in a month and you re in trouble i would recommend splitting uploads by day instead so the pantheon filesystem isn t strained a plugin like this can help you do that sometimes notices cause segfaults i honestly don t know what is going on here but i ve seen e_notice errors cause php segfaults being segfaults they produce no useful information in logs and i ve had to spend hours tracking down the code causing the issue this happens reliably for given code paths but i don t have a reproducible example it s just weird i have a ticket open with pantheon about this it s something in their custom error handling until they get this fixed i suggest doing something like this in the first line of wp config php disable pantheon s error handler which causes segfaults function disable_pantheon_error_handler does nothing if isset _env pantheon_environment set_error_handler disable_pantheon_error_handler this just sets a low level error handler that stops errors from bubbling up to php core where the trouble likely lies you can still use something like debug bar to show errors or you could modify that blank error handler to write out to an error log file have your own tips do you have any tips for hosting wordpress on pantheon let me know in the comments comment april 13 2015 april 15 2015 mark jaquith development pantheon php wordpress introducing cache buddy a companion for your wordpress page caching solution wordpress is by default completely dynamic on every page load a bunch of work happens cookies are read a database is queried content is transformed all of this makes wordpress very powerful and flexible but for sites that get a lot of traffic and mostly just need to crank out the same pages for everyone this dynamic nature can become a challenge the common solution to this is to layer a page cache on top of wordpress batcache w3 total cache and wp super cache are examples of page caches built as wordpress plugins varnish nginx fastcgi caching and cdns like akamai or cloudflare are examples of page caching that happens outside of the wordpress layer they store the html that wordpress generates for a given url and then store it for later so that when people request that url in the future they can just get the cached version for little or no work on wordpress part but these page caching solutions all share the same downside they can t cache pages for logged in wordpress users or users with wordpress comment cookies why not well because wordpress looks at these cookies and alters the page based on them a logged in user will see the wordpress toolbar at the top which is customized to them users with more privileges might see edit links next to content that they can edit and returning commenters will see their name e mail and url helpfully filled in to comment forms all these things change the output of the page such that it wouldn t be worth it for a page cache to hold on to that page it would only be of use to the individual visitor who triggered it so all of these page caching solutions have rules that make them skip the page cache if a user has a wordpress comment cookie or a wordpress user account cookie and also a post password cookie though this is an infrequently used feature if a site has an active commenting community or has open registration or required registration this means that a much smaller percentage of page views can be cache hits instead they are the dreaded cache miss and they fall back to having wordpress generate a dynamic page the difference between a cache miss and a cache hit is not small a cache hit takes minimal effort for the server and can be delivered to the user much faster it can be the difference between 1 second and 0 002 seconds five hundred times slower dynamic views keep the server connection open for longer and take up cpu cycles this can snowball under heavy load pages start taking longer and because they start taking longer less cpu is available eventually they can time out or the server can run out of connections not good you want cache hits during a situation like this but if the traffic isn t anonymous non comment cookie non logged in cookie the available caching solutions just give up i ve been solving this issue for years with custom caching solutions that strip the customizations from the page so that the cache can be configured to serve one static page to everyone now i ve moved these techniques into a plugin and i m calling it cache buddy cache buddy works by doing the following changes what paths logged in cookies are set for so they work in the wordpress backend but don t exist on the front of the site sets custom cookies with relevant information about the logged in user on the front of the site making these cookies javascript readable sets custom cookies for commenters again javascript readable and doesn t set the normal wordpress comment cookies uses the information from these javascript cookies plus some comment form magic to recreate the comment form experience users would get from a dynamic page this means that you can log in to wordpress and then go a view a post s comment form and see you are logged in as mark log out or you can be a non account having commenter who has commented and your information will be filled in or maybe the site requires registration and you re not signed in you ll see the normal prompt to sign in but here s the kicker all of these pages are the same page and will be cached by page caching solutions the customizations are all done in javascript using the custom and unknown to wordpress optimized page caches cookies that cache buddy sets what about the toolbar well by default subscriber and contributor users won t see it but it honestly isn t very useful to them anyway but authors editors and administrators who should be a very small percentage of viewers will still get dynamic page views like they do now and they ll see the toolbar what about buddypress good luck some plugins customize the page so much that all views really do need to be dynamic object caching is your friend for these cases is this for every site no if you have a buddypress site or an e commerce site you may honestly need wordpress logged in cookies available on the front of your site but if you re just running a blog cms site with a significant number of commenters and logged in subscribers this plugin could massively speed up your site because requests that had to always be dynamic before can now be served from a page cache what about the meta widget not currently supported but i m hoping to add support for it what about other logged in site customizations the user will appear to by an anonymous visitor but you could recreate them in js by reading the cookies that cache buddy sets comment march 27 2015 march 27 2015 mark jaquith batcache caching nginx page caching varnish w3 total cache wp super cache ask mark anything people ask me a lot of questions about wordpress and web development for sure but also about other topics i ve decided to try a little experiment a public way to ask me questions zach holman from github had the idea to use a github issue tracker for this very purpose and i think it looks like a splendid idea benefits allows for more in depth discussions than twitter but you can still talk to me on twitter for quick questions is public as opposed to e mail forces me to deal with questions now note that this doesn t mean i want you to treat me like your personal google sear...
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