# Bad value “”og:type”” for attribute “property” on element “meta”: The string “”og:type”” is not an absolute URL.

> Canonical HTML version: https://rocketvalidator.com/html-validation/bad-value-og-type-for-attribute-property-on-element-meta-the-string-og-type-is-not-an-absolute-url
> Attribution: Rocket Validator (https://rocketvalidator.com)
> License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

This error is almost always caused by copying and pasting code from a word processor, CMS rich-text editor, blog post, or PDF. These tools often auto-correct straight quotation marks (`"`) into typographic (curly or "smart") quotes (`"` and `"`). While curly quotes look nicer in prose, they are not valid as attribute delimiters in HTML. The browser and the W3C validator only recognize the standard straight double quote (`"`, U+0022) or straight single quote (`'`, U+0027) as attribute value delimiters.

When the validator encounters markup like `<meta property="og:type"`, the curly quotes are treated as part of the attribute's value. The validator then sees the value as `"og:type"` — a string wrapped in literal curly quote characters. Since the `property` attribute in RDFa (which Open Graph Protocol relies on) expects a term or an absolute URL, and `"og:type"` is neither, the validator reports the error.

This problem can affect any HTML attribute, but it's especially common with `<meta>` tags for Open Graph, Twitter Cards, and other social sharing metadata, since developers frequently copy these snippets from documentation or tutorials.

### How to fix it

1. **Find the curly quotes.** Look at the `property` attribute value in your source code. Curly opening quotes (`"`, U+201C) and closing quotes (`"`, U+201D) may look nearly identical to straight quotes in some fonts, so use your editor's find-and-replace feature to search for `"` and `"`.
2. **Replace them with straight quotes.** Swap every `"` and `"` with a standard straight double quote (`"`).
3. **Disable smart quotes in your editor.** If you're writing HTML in a rich-text editor or word processor, turn off the "smart quotes" or "typographic quotes" feature. Better yet, use a dedicated code editor (like VS Code, Sublime Text, or similar) that won't auto-replace quotes.

## Examples

### Incorrect — curly quotes around the attribute value

```html
<meta property="og:type" content="website" />
```

The curly `"` and `"` characters become part of the value itself, producing the validator error: *Bad value `"og:type"` for attribute `property`*.

### Correct — straight quotes around the attribute value

```html
<meta property="og:type" content="website" />
```

Standard straight double quotes correctly delimit the attribute values, and the validator sees `og:type` as expected.

### Correct — single straight quotes are also valid

```html
<meta property='og:type' content='website' />
```

Straight single quotes (`'`, U+0027) work just as well as straight double quotes for delimiting HTML attribute values. Use whichever style your project prefers, but be consistent.

### Full Open Graph example

```html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>My Page</title>
  <meta property="og:title" content="My Page">
  <meta property="og:type" content="website">
  <meta property="og:url" content="https://example.com/">
  <meta property="og:image" content="https://example.com/image.png">
</head>
<body>
  <p>Hello, world!</p>
</body>
</html>
```

All `property` and `content` attributes use straight double quotes, ensuring clean validation and correct parsing by social media crawlers.