SEO Improvement Guide: Implementing Structured Data and OGP on Your Astro Site

Introduction

When people think of SEO, they might imagine “keyword stuffing,” but modern SEO is fundamentally about accurately conveying your site’s structure and content to search engines.

This article explains SEO measures to implement on an Astro site, divided into four categories. Each one provides ongoing benefits once configured.

Setting Up OGP and Meta Tags

OGP and meta tags handle the appearance when shared on social media and the delivery of information to search engines.

Basic Meta Tags

In your Astro layout component, output the following for each page:

• og:title / og:description / og:image — Title, description, and image when shared on social media
• twitter:card = summary_large_image — Display a large image card on X (Twitter)
• rel="canonical" — Specify the canonical URL for duplicate pages
• rel="prev" / rel="next" — Indicate pagination relationships

Blog Post Meta Tags

Set the following additional tags on article pages:

• article:published_time / article:modified_time — Publish and update dates
• article:tag — Article tag information
• article:section — Content category

Implementation Tips

By accepting title / description / image as props in the layout component and passing them from each page, you can ensure consistent meta tag output across all pages. For the homepage og:title, use a specific title that includes the site name and tagline rather than just “Home.”

Implementing Structured Data (JSON-LD)

Structured data is a mechanism that allows search engines to mechanically understand page content. When implemented correctly, rich results (FAQs, breadcrumbs, author information, etc.) may appear in search results.

Organization

Convey company information to Google. It may appear in the Knowledge Panel.

{
  "@type": "Organization",
  "name": "Acecore",
  "url": "https://acecore.net",
  "logo": "https://acecore.net/logo.png",
  "contactPoint": { "@type": "ContactPoint", "telephone": "..." }
}

You can also add a knowsAbout field to the about page to specify business domains.

BlogPosting

Set BlogPosting for blog articles. Including author, publish date, update date, and featured image enables author information display in Google Discover and search results.

BreadcrumbList

Breadcrumb structured data should be set on all pages. An important implementation note: verify that intermediate paths (like listing pages such as /blog/tags/) actually exist, and don’t output the item property for non-existent paths.

FAQPage

Output FAQPage structured data for articles with FAQ sections. In Astro, defining an faq field in the frontmatter and detecting/outputting it on the template side is a convenient approach.

WebSite + SearchAction

If you have site search, setting SearchAction may display a site search box in Google search results. Combined with a search engine like Pagefind, implementing an auto-launch mechanism for the search modal via ?q= parameter improves the user experience.

Sitemap Optimization

You can auto-generate a sitemap using Astro’s @astrojs/sitemap plugin, but the default settings are insufficient.

Per-Page-Type Configuration

Use the serialize() function to set changefreq and priority based on URL patterns.

Setting lastmod

Set lastmod to the build date to communicate content freshness to search engines. If a blog post has a lastUpdated field in its frontmatter, prioritize that.

Enhancing the RSS Feed

RSS tends to be a “set it and forget it” task, but improving feed quality enhances display in RSS readers and improves the subscriber experience.

Information to Add

• author: Include the per-article author name
• categories: Add tag information as categories to improve classification in RSS readers

items: posts.map(post => ({
  title: post.data.title,
  description: post.data.description,
  link: `/blog/${post.id}/`,
  pubDate: post.data.date,
  author: post.data.author,
  categories: post.data.tags,
}))

SEO Improvement Checklist

Finally, here’s a summary of the key points to verify for Astro site SEO improvement:

1. Is a canonical URL set on every page?
2. Is a unique OGP image prepared for each page?
3. Structured data validation: Check with Google Rich Results Test
4. Do intermediate paths in breadcrumb lists point to actual URLs?
5. Does the sitemap exclude unnecessary pages (like 404)?
6. Does the RSS feed include author and categories?
7. Does robots.txt exclude search indexes (like /pagefind/) from crawling?

Once you’ve configured all these, your SEO foundation is in place. From there, search rankings are determined by content quality and update frequency.

Series This Article Belongs To

This article is part of the “Astro Site Quality Improvement Guide” series. Separate articles cover performance, accessibility, and UX improvements.