WordPressにGoogleタグマネージャーをインストール・設定する方法

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1. Moinuddin Waheed

   Google tag manager aka GTM is such a powerful tool that enables tracking Google ads, Google analytics, Google optimize and Google Adsense all with the help of a snippet. This is really helpful in terms of tracking and making informed decision about different aspect of the blog and business.
   Both the methods mentioned is easy to implement and gets the GTM working for us. The second method with the plugin is better option for beginners like us. Thanks for bringing such an insightful article.

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2. prakhar sahu

   as a beginner, this post was given to me from siteground guy to help me and thanks to you as well .thankyou

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   • WPBeginner Support

     Glad our article was able to assist

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3. Jasper

   Hi there,

   This solution works as a charm, thanks a lot. I have 1 issue though: All the way at the bottom of all my site pages there is now a white bar with the text “Javascript” written inside it on the left side of the screen.

   How can I remove that?

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   • WPBeginner Support

     You may want to make sure you copied the entire code as that normally means javascript code you’ve added to your site may have an error.

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4. Ann

   I’d rather not install more plugins than I need. My theme allows me to paste the GTM code with the GA tag in my header. However, how do I get the body code in my page? Do i just use a text field high up on my HOME page and paste it in there? Thanks!

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   • Nitesh S

     Hey Ann,

     I know I’m late to reply but I’d highly recommend you install the plugin.

     Without it, you won’t be able to send detailed information to GA. I.e. If it’s an eCommerce – you won’t be able to receive product information, GTM on it’s own will give you extremely basic data and you’ll need to configure it entirely yourself which believe me takes weeks!

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5. Naji Boutros

   Google Tag manager specifically says to post a portion of the code in the body of the webpage. Nothing I find on implementing Google Tag manager addresses this. Why is that?

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   • adrian

     The video hasn’t been updated in a while. What you have to do is put the 2nd half of the code in the footer section of the plugin, which actually places it in the body section. If you look at the plugin in wordpress it says “These scripts will be printed above the tag.”

     Anything above ” is going to be in the body section.

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6. Deelip Kushwaha

   Hi Admin,

   I don’t have good knowledge on WordPress.
   I am using WordPress theme for my website. And want to add google tag manager in my website. Can you please tell me how can I add tag manager code in WordPress Child theme. I am waiting for your positive response.

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7. NM

   Where shoud I put “Additionally, paste this code immediately after the opening tag” on Header and Footer Plugin ?

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   • JCarter

     Th newer version of GTM uses two codes. Place the first one in the Head and the second one just after the opening Body tag.

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     • Toni Buscarino

       Can you recommend a plugin that lets you easily paste code after the Body tag?

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     • Naji Boutros

       Where in WordPress can you post a script directly after the opening body tag?

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8. Fahad Ur Rehman Khan

   What is the reason of using Google Tag Assistant ?

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9. Tushar Sharma

   Hi i want to ask when i have saved i am not able to find my code so where i can find my code

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10. Aswani

    Wonderful guide. I got one major confusion cleared now – whether to add google analytics code first and then add google tag manager tags. Thanks a lot for this awesome help. A big time saver.

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11. Rob Wood

    Hi,

    There is two elements to Google Tag Manager install

    1) in Header
    2) in Body

    Will you update your explanation to show the solution for this?

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12. AJ

    Also, there’s another piece of code besides the code you mention here. They ask you to “Paste this code as high in the of the page as possible:”, and the code is:

    
    (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({‘gtm.start’:
    new Date().getTime(),event:’gtm.js’});var f=d.getElementsByTagName(s)[0],
    j=d.createElement(s),dl=l!=’dataLayer’?’&l=’+l:”;j.async=true;j.src=
    ‘https://www.googletagmanager.com/gtm.js?id=’+i+dl;f.parentNode.insertBefore(j,f);
    })(window,document,’script’,’dataLayer’,’GTM-XXXXXX’);
    

    Can I install both pieces of code in the header, right next to each other?

    Thanks!

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    • Anthony

      Yes, Google has changed this very recently. I want this also up-to-date and by Function.php instead of a plugin. Anybody???

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13. AJ

    Hi, can I have both GA and GTM in the code at the same time? Or I have to remove GA if I’m installing GTM?

    Thanks!

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    • Kevin

      Hi AJ,

      you can have both (GA + GTM) in the code at the same time. No worries. Although it is more convenient to fire the GA snippet also through GTM. Google provides good instructions how to do that:

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14. Karen McElhinney

    Is there a different procedure for WordPress.com?

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15. Alessandro Marengo

    Am I wrong or there is a bit of lack of support for your plugin on wordpress forum? It’s a pity…

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16. Murray

    Great tutorial – I love you guys. I read it through and then read all the comments. Got my answers. Installed it etc and then checked my site by browsing from my smartphone.
    Everything is working great!

    No questions, just a big thankyou.
    Well done

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17. Gaurav Singh

    I got This completely, But I have a confusion about there is my analytics code exist to how can I both through plugin insert header & Footer.

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    • shubhangi

      just place the google tag manager code below your google analytics code using plugin recommended.

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18. Catherine

    I’m very new to Google Tag Manager, this is the easiest tutorial I’ve found so far without the confusion.
    However I’m wondering if there is a conflict with having both GA code and GTM code on my website?
    There is a place on my wordpress theme to insert the Google Analytics code for tracking which I have always had.
    I have now inserted the Google Tag Manager code to the header php on my site so should I remove the original Google Analytics code or does that stay?
    Many Thanks,
    Catherine

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    • WPBeginner Support

      You can remove tracking code from your theme.

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19. Lisa Smith

    Thank you for making the plugin Multisite compatible!

    I see Google Tag Manager says to place the code immediately after the opening tag, but the plugin places it inside the tag. Will it still work if placed in the head rather than body?

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    • WPBeginner Support

      Yes it would.

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      • Alessandro Marengo

        Hi!
        During the last few months I took part to several SEO courses, most of them specific on the topic GTM: since it’s strongly recommended to insert GTM right after the tag, did you plan to update your plugin in order for it to do so?
        I hope so!

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        • Alessandro Marengo

          *the body tag

20. AJ Levinson

    Thank you so much for this excellent tutorial.

    I am confused about a potential conflict with this method. Can you please help?

    Google Tag Manager says that the code can not be in the header. They want it right after the tag. But, if I use the Insert Headers and Footers plugin and paste the code there, won’t it put the Tag Manager code in the Header? Won’t this cause a conflict?

    In the paragraph, you wrote: “If you do not wish to install a plugin, then you can also add the Google Tag Manager code in your WordPress theme or Child theme. Simply edit the header.php template and paste the code right after tag.” Is there a step-by-step on how to do this?

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    • WPBeginner Support

      You can put it in the footer of insert headers and footers plugin.

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    • Jason

      You might have wondered why Google so forcefully recommends that you place the container snippet just after the opening tag. There are two good reasons to do so.

      First, if you add the tag as well (as you should), this should always be in the body of the document. The tag (which is shown for browsers without JavaScript enabled) contains an iFrame which loads the GTM library. If you add the tag into the head of your document, it can perform pretty wildly with some browsers. You could experiment with leaving the in the body, and placing the JavaScript in the , but I haven’t tested it and certainly don’t recommend it.

      The second reason is simple: to maximize data collection, the snippet should be the first thing loaded when the body of the page is rendered. Because the library is loaded asynchronously, there’s no reason to delay it at all. So have it load as the first thing when the body is rendered, so that you don’t risk losing any data due to sluggish DOM elements delaying the page load.

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      • Vince Outlaw

        So, if you want it to load right after the tag, then is seems like you can’t use the Insert Headers and Footers plugin because the only options are in the (nope) and right before the tag (so at the end of loading, nope).

        Am I reading this right?

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21. steve

    Curious about duel installs, of both, on Wordpress — I know you have to have both accounts setup in google, but does the tag manager, in effect, *replace* the GA plugin we’ve been using for a few years?

    Or, does one still install both the GA plugin AND the tag manager plugin? Seems redundant, or perhaps I’m not understanding things clearly.

    Just trying to know the most efficient way to get all the analytics I enjoy now, and all the tag manager analytics as well.

    Thanks,
    S

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    • WPBeginner Support

      Tag Manager is not an analytics solution in itself. It just provides an easier way to add analytics tracking in your WordPress site. If you add Google Analytics by adding it through a tag in tag manager than you can safely uninstall Google Analytics plugin on your WordPress site.

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22. Marcelo

    Sorry i might be slower to understand, but what is the difference between google analytic and tag manager ? I mean, what am i missing using analytic only ?

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    • WPBeginner Support

      Google Tag Manager simply makes it easier to add analytics, manage and track events, and add third party scripts to your website. Tag Manager is not an alternate to analytics.

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23. Susan Meko

    What a detailed and step by step guide on GTM. I just completed my training on this and now I am completely clear on this.
    I believe it has nothing to do with SEO and ranking, it is just for managing all the tags we could us on our website.

    Regards
    Susan Meko

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    • WPBeginner Support

      Thanks, we are glad you found it helpful.

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24. bator

    ı couldn’t get the code. I only had save button and I saved it… =(
    ı can not see the code…

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25. Rufus B

    Videos please to go with the written instructions. Videos I watch, the written stuff, almost never.

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    • WPBeginner Support

      Please subscribe to our YouTube Channel we will try to cover this in a video tutorial soon.

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26. Kabelo

    Hi, may I ask. I have two wordpress installed in one domain. eg: http://www.wp1.com/wp2.

    Will tracking wp1 be able to give me the stats of w2. If not, how may I achieve that?

    Looking forward to your response.

    Thank you in advance.

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    • WPBeginner Support

      You can install the same Tag in both WordPress installs. Since the tag fires Google Analytics based on domain, it will launch it on both sites.

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27. DOK Simon

    That is great , simple tutorial with details. A friend told me about it but didn’t explain to this extent … Please apart from managing all script in a single dashboard does it in anyway improve the site SEO…. ??

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28. ahmed

    very good thank you for sharing

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29. Saeed Khan

    Brother your article is very informative. Can we used google analytics and google tag manager code together?

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    • WPBeginner Support

      Yes you can.

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