PageSpeed Insights 99 100 because of Google Analytics - How can I cache GA

Question

I m on a quest to reach 100 100 on PageSpeed and i m almost there   I m trying to find a good solution to cache Google Analytics     Here is the message I get   Leverage browser caching Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network  Leverage browser caching for the following cacheable resources  http   www google-analytics com analytics js  2 hours   The only solution i ve found was from 2012 and I do not think it is a good solution   Essentially you copy the GA code and host it yourself   You then run a cron job to recheck Google once a day to grab the latest GA code and replace it     http   diywpblog com leverage-browser-cache-optimize-google-analytics   What else can I do to reach 100 100 while also using Google Analytics   Thank you

User · Answer

In 2020 Page Speed Insights user agents are   Chrome-Lighthouse  for mobile and  Google Page Speed Insights  for desktop    lt  php if   isset   SERVER  HTTP USER AGENT       stripos   SERVER  HTTP USER AGENT     Chrome-Lighthouse       false     stripos   SERVER  HTTP USER AGENT     Google Page Speed Insights       false     gt     your google analytics code and other external script you want to hide from PageSpeed Insights here  lt  php endif    gt

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I wouldn t worry about it  Don t put it on your own server  it sounds like this is an issue with Google  but as good as it gets  Putting the file on your own server will create many new problems   They probably need the file to get called every time rather than getting it from the client s cache  since that way you wouldn t count the visits    If you have a problem to feel fine with that  run the Google insights URL on Google insights itself  have a laugh  relax and get on with your work

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PHP  Add this in your HTML or PHP code    lt  php if   isset   SERVER  HTTP USER AGENT       stripos   SERVER  HTTP USER AGENT     Speed Insights       false     gt     lt script gt       function i s o g r a m  i  GoogleAnalyticsObject   r i r  i r   function         i r  q i r  q      push arguments   i r  l 1 new Date   a s createElement o       m s getElementsByTagName o  0  a async 1 a src g m parentNode insertBefore a m         window document  script   https   www google-analytics com analytics js   ga         ga  create    UA-PUT YOUR GOOGLE ANALYTICS ID HERE    auto        ga  send    pageview       lt  script gt   lt  php endif    gt    JavaScript  This works fine with JavaScript      lt script gt    if navigator userAgent indexOf  Speed Insights      -1         function i s o g r a m  i  GoogleAnalyticsObject   r i r  i r   function         i r  q i r  q      push arguments   i r  l 1 new Date   a s createElement o       m s getElementsByTagName o  0  a async 1 a src g m parentNode insertBefore a m         window document  script   https   www google-analytics com analytics js   ga         ga  create    UA- lt PUT YOUR GOOGLE ANALYTICS ID HERE gt     auto        ga  send    pageview           lt  script gt         NiloVelez already said  Obviously  it won t make any real improvement  but if your only concern is getting a 100 100 score this will do it

User · Answer

You can minify all your scripts in page  including analytics js using    Some server-side technology  https   github com matthiasmullie minify  External service  http   www cloudflare com    Remember to minify the files before using it  Otherwise it will consume more processing time

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Open https   www google-analytics com analytics js file in a new tab  copy all the code   Now create a folder in your web directory  rename it to google-analytics   Create a text file in the same folder and paste all the code you copied above   Rename the file ga-local js  Now change the URL to call your locally hosted Analytics Script file in your Google Analytics Code  It will look something like this i e  https   domain xyz google-analytics ga js  Finally  place your NEW google analytics code into the footer of your webpage   You are good to go  Now check your website of Google PageSpeed Insights  It will not show the warning for Leverage Browser Caching Google Analytics  And the only problem with this solution is  to regularly update the Analytics Script manually

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You can set up a cloudfront distribution that has www google-analytics com as its origin server and set a longer expiry header in the cloudfront distribution settings  Then modify that domain in the Google snippet  This prevents the load on your own server and the need to keep updating the file in a cron job    This is setup  amp  forget  So you may want to add a billing alert to cloudfront in case someone  copies  your snippet and steals your bandwidth  -   Edit  I tried it and it s not that easy  Cloudfront passes through the Cache-Control header with no easy way to remove it

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Google cautions against using local copies of the analtics scripts   However if you are doing it  you will probably want to use local copies of the plugins  amp  the debug script   A second concern with agressive caching is that you will be getting hits from cached pages - which may have changed or have been removed from the site

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Well  if Google is cheating on you  you can cheat Google back   This is the user-agent for pageSpeed      Mozilla 5 0  X11  Linux x86 64  AppleWebKit 536 8  KHTML  like Gecko  Google Page Speed Insights  Chrome 19 0 1084 36 Safari 536 8      You can insert a conditional to avoid serving the analytics script to PageSpeed    lt  php if   isset   SERVER  HTTP USER AGENT       stripos   SERVER  HTTP USER AGENT     Speed Insights       false     gt     your analytics code here  lt  php endif    gt    Obviously  it won t make any real improvement  but if your only concern is getting a 100 100 score this will do it

User · Answer

store localy analytics js  but it is not recommended by google  https   support google com analytics answer 1032389 hl en  it is not recommended cause google can update script when they want  so just do a script that download analytics javascript each week and you will not have trouble    By the way this solution prevent adblock from blocking google analytics scripts

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To fix this issue you would have to download the file locally and run a cron job to keep updating  Note  this doesn t make your website any faster at all so its best to just ignore it   For demonstration purposes however  follow this guide  http   diywpblog com leverage-browser-cache-optimize-google-analytics

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This may do the trick       lt script gt      ajax     type   GET     url   https   www google-analytics com analytics js     success  function        dataType   script     cache  true        lt  script gt

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For Nginx   location    analytics js           proxy pass https   www google-analytics com          expires 31536000s          proxy set header Pragma  public           proxy set header Cache-Control  max-age 31536000  public           Then change path https   www google-analytics com analytics js to https   yoursite com analytics js

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There s a subset of Google Analytics js library called ga-lite that you can cache however you want   The library uses Google Analytics  public REST API to send the user tracking data to Google  You can read more from the blog post about ga-lite   Disclaimer  I am the author of this library  I struggled with this specific problem and the best result I found was to implement this solution

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Depending on your use of Google Analytics data  if you want basic information  such as visits  UI interactions  you might be able to not include analytics js at all  yet still collect data in GA   One option may be to instead use the measurement protocol in a cached script  Google Analytics  Measurement Protocol Overview  When you set the transport method explicitly to image  you can see how GA constructs its own image beacons   ga  set    transport    image     https   www google-analytics com r collect    v  protocol-version     amp tid  tracking-id     amp cid  client-id     amp t  hit-type     amp dl  location    You could create your own GET or POST requests with the required payload   However  if you require a greater level of detail it probably won t be worth your effort

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You can proxy the google analytics script via your own server  save it locally and  auto update the file every hour to make sure it s always latest version from google   I ve done this on a couple of sites now and all is working fine   Google Analytics Proxy Route in NodeJS   MEAN Stack  This is how I implemented it on my blog that s built with the MEAN stack   router get   analytics js   function  req  res  next        var fileUrl    http   www google-analytics com analytics js       var filePath   path resolve   content analytics js            ensure file exists and is less than 1 hour old     fs stat filePath  function  err  stats            if  err                   file doesn t exist so download and create it             updateFileAndReturn              else                  file exists so ensure it s not stale             if  moment   diff stats mtime   minutes    gt  60                    updateFileAndReturn                  else                   returnFile                                            update file from remote url then send to client     function updateFileAndReturn             request fileUrl  function  error  response  body                fs writeFileSync filePath  body               returnFile                              send file to client     function returnFile             res set  Cache-Control    public  max-age     oneWeekSeconds           res sendFile filePath               Google Analytics Proxy Action Method in ASP NET MVC  This is how I implemented it on other sites built with ASP NET MVC   public class ProxyController   BaseController        Compress      public ActionResult GoogleAnalytics                 var fileUrl    https   ssl google-analytics com ga js           var filePath   Server MapPath    scripts analytics js                ensure file exists          if   System IO File Exists filePath               UpdateFile fileUrl  filePath               ensure file is less than 1 hour old         var lastModified   System IO File GetLastWriteTime filePath           if  DateTime Now - lastModified  TotalMinutes  gt  60              UpdateFile fileUrl  filePath               enable caching for 1 week for page speed score         Response AddHeader  Cache-Control    max-age 604800             return JavaScript System IO File ReadAllText filePath               private void UpdateFile string fileUrl  string filePath                using  var response   WebRequest Create fileUrl  GetResponse            using  var dataStream   response GetResponseStream            using  var reader   new StreamReader dataStream                         var body   reader ReadToEnd                System IO File WriteAllText filePath  body                       This is the CompressAttribute used by the MVC ProxyController for Gzip compression  public class CompressAttribute   ActionFilterAttribute       public override void OnActionExecuting ActionExecutingContext filterContext                 var encodingsAccepted   filterContext HttpContext Request Headers  Accept-Encoding            if  string IsNullOrEmpty encodingsAccepted   return           encodingsAccepted   encodingsAccepted ToLowerInvariant            var response   filterContext HttpContext Response           if  encodingsAccepted Contains  gzip                          response AppendHeader  Content-encoding    gzip                response Filter   new GZipStream response Filter  CompressionMode Compress                     else if  encodingsAccepted Contains  deflate                          response AppendHeader  Content-encoding    deflate                response Filter   new DeflateStream response Filter  CompressionMode Compress                       Updated Google Analytics Script  On the client side I append the analytics path with the current date up to the hour so the browser won t use a cached version more than an hour old    lt  -- analytics -- gt   lt script gt       function  i  s  o  g  r  a  m            i  GoogleAnalyticsObject     r  i r    i r     function                   i r  q   i r  q        push arguments             i r  l   1   new Date    a   s createElement o           m   s getElementsByTagName o  0   a async   1  a src   g  m parentNode insertBefore a  m         window  document   script     analytics js d     new Date   toISOString   slice 0  13    ga     lt  script gt

User · Answer

try this just insert before    lt script async  async  src  https   cdn jsdelivr net ga-lite latest ga-lite min js  gt  lt  script gt   lt script gt var galite galite     galite UA  xx-xxxxxxx-x   lt  script gt    Please change xx-xxxxxxx-x to your code  please check to implementation here http   www gee web id 2016 11 how-to-leverage-browser-caching-for-google-analitycs html

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varvy com  100 100 Google page speed insight  loads google analitycs code only if user make a scroll of the page   var fired   false   window addEventListener  scroll   function        if   document documentElement scrollTop    0  amp  amp  fired     false      document body scrollTop    0  amp  amp  fired     false               function i s o g r a m i  GoogleAnalyticsObject   r i r  i r   function    i r  q i r  q      push arguments   i r  l 1 new Date   a s createElement o  m s getElementsByTagName o  0  a async 1 a src g m parentNode insertBefore a m    window document  script     www google-analytics com analytics js   ga             ga  create    UA-XXXXXXXX-X    auto            ga  send    pageview             fired   true           true

User · Answer

Here is a really simple solution using JS  for basic GA tracking  which will also work for edge caches proxies  this was converted from a comment    if navigator userAgent indexOf  Speed Insights      -1       function i s o g r a m  i  GoogleAnalyticsObject   r i r  i r   function       i r  q i r  q      push arguments   i r  l 1 new Date   a s createElement o     m s getElementsByTagName o  0  a async 1 a src g m parentNode insertBefore a m       window document  script   https   www google-analytics com analytics js   ga       ga  create    UA-XXXXXXXXX-X    auto      ga  send    pageview        Note  This is the default GA script  You may have other ga   calls  and if so  you would need to always check the user agent before calling ga    otherwise it may error out

User · Answer

You can try to host the analytics js locally and update it s contents with a caching script or manually   The js file is updated only few times a year and if you don t need any new tracking features update it manually   https   developers google com analytics devguides collection analyticsjs changelog

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In the Google docs  they ve identified a pagespeed filter that will load the script asynchronously   ModPagespeedEnableFilters make google analytics async   You can find the documentation here  https   developers google com speed pagespeed module filter-make-google-analytics-async  One thing to highlight is that the filter is considered high risk  From the docs      The make google analytics async filter is experimental and has not had extensive real-world testing  One case where a rewrite would cause errors is if the filter misses calls to Google Analytics methods that return values  If such methods are found  the rewrite is skipped  However  the disqualifying methods will be missed if they come before the load  are in attributes such as  onclick   or if they are in external resources  Those cases are expected to be rare

[google-analytics] PageSpeed Insights 99/100 because of Google Analytics - How can I cache GA?

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