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JavaScript

Benjamin McCarthy
Benjamin McCarthy
2,002 Points
Posted by Benjamin McCarthy
Benjamin McCarthy
2,002 Points

JSON Schema for SEO - using getElementById to pull from HTML - valid?

To try and work out if it's possible to write some JS to put in the header of a template, that then uses IDs to create a schema for each page (to help with SEO). I have done the following:

<head>
<script>
var urlVar = window.location.href;
var datePublishedVar = document.getElementById(datepublishedid);
var headineVar = document.getElementById(headlineid);
var imageMainVar = document.getElementById(mainimageid);
var articleBodyVar = document.getElementById(articlebodyid);
{
 "@context" : "http://schema.org", 
"@type" : "Article",
"url" : urlVar,
"datePublished" : datePublishedVar,
    "headline": headineVar,
    "inLanguage": "en_gb",
  "image" : imageMainVar,
  "articleBody" : articleBodyVar,
    "publisher": {
        "@context": "https://schema.org",
        "@type": "Organisation",
        "url": "http://www.YOURWEBSITE.com",
        "name": "YOUR COMPANY NAME",
        "description": "YOUR COMPANY DESCRIPTION"
    },

}
</script>


<head>
<body>
<p id="datepublishedid">02/05/2018</p>
<h1 id="headlineid">This is The Headline</h1>
<p id="articlebodyid">The Body of Text</p>
<img id="mainimageid" src="https://www.google.co.uk/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png">
</head>

<footer>
</footer>

Would this work or am i off the mark? It feels like i'm getting this wrong

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

Most likely, since it is not part of a statement or expression, the object literal would be mistaken by the JavaScript engine as the start of a code block and the contents would cause a syntax error.

Is there some code missing that would do something with this object?

Benjamin McCarthy
Benjamin McCarthy
2,002 Points
Benjamin McCarthy
Benjamin McCarthy
2,002 Points

Thank you for your reply Steven

a JSON-LD structured data snippet would usually be:

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Organization",
  "url": "http://www.example.com",
  "name": "Unlimited Ball Bearings Corp.",
  "contactPoint": {
    "@type": "ContactPoint",
    "telephone": "+1-401-555-1212",
    "contactType": "Customer service"
  }
}
</script>

is <script type="application/ld+json"> important for it to be rendered as an object? (readable by Google bot)

Am i being thick that you can't add variables to this kind of script?

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

To avoid confusing the browser, be sure to separate the JSON block from the JavaScript code, and give each the appropriate type of script tags.

Also, it looks like the closing head tag is missing a slash, but there's an extra closing head tag inside the body.

My comments are just related to how the code would affect a browser. I'm not familiar with the operation of Google bot or what it might do with this data.