Making a Blog with C# - Part 6

SEO

I wanted to make links to my blog posts more accurate, so I needed to add some <meta> tags to provide title, description and tags to the websites displaying links.

I wanted to use the data I already have for rendering blog post cards on the front page, so I figured I'd make a component for it:

<PageTitle>@Title</PageTitle>
<HeadContent>
    <meta name="description" content="@Description" />
    <meta name="og:title" content="@Title" />
    <meta name="og:description" content="@Description" />

    @if (Tags is not null)
    {
        <meta name="tags" content="@Tags" />
    }
</HeadContent>

@code {
    [Parameter]
    public string Title { get; set; } = null!;

    [Parameter]
    public string Description { get; set; } = null!;

    [Parameter]
    public string? Tags { get; set; } // Comma separated list
}

This uses the built-in <PageTitle> and <HeadContent> Component to update title and metadata respectively.

The meta tags that start in og helps sites like Twitter and Facebook display the information in a nice way.

To make use of the new MetadataComponent, I first removed the title and meta tags from Index.razor, and replaced it with this:

Usage in Index.razor

<MetadataComponent Title="@DefaultMetadata.Title" Description="@DefaultMetadata.Description" Tags="@DefaultMetadata.Tags" />

The defaults are defined in a separate file:

public static class DefaultMetadata
{
    public const string Title = "Pilgaard | dotnet blog";
    public const string Description = "Hi! I write about code - Particularly C#, but also PowerShell and the occasional JavaScript.";
    public const string Tags = "blazor, dotnet, csharp, blog, programming";
}

To set it up for BlogPosts, I did the following in BlogPostComponent.razor:

<MetadataComponent
    Title="@Title"
    Description="@BlogPost.Description"
    Tags="@Tags" />

@code {
    private string Title => BlogPostSeries?.Title is null ?
        $"{DefaultMetadata.Title} | {BlogPost.Title}" :
        $"{DefaultMetadata.Title} | {BlogPost.Title} | {BlogPostSeries.Title} - Part {BlogPost.NumberInSeries}";

    private string Tags => string.Join(", ", BlogPost.Tags, BlogPostSeries?.Tags);
}

File trimmed for brevity

Summary

We've seen that adding SEO metadata to Blazor Server is a breeze using the built in <PageTitle> and <HeadContent components.

See the code

Pull Request implementing the changes in this post

The state of the blog

Front page

This post