This repository contains my personal website and blog, built with plain Jekyll layouts/includes and licensed under the MIT License.

Social card images (Open Graph / Twitter)

Posts can define a custom social preview image in front matter:

og_image: "/assets/images/example.png"
og_image_width: 1200
og_image_height: 630
og_image_alt: "Optional accessible description"

If omitted, the site-level default_og_image fallback in _config.yml is used.

CI checks

GitHub Actions runs:

• Jekyll Build on pull requests and pushes to master
  • includes a guardrail check: every post in _posts must define og_image, og_image_width, and og_image_height, and local og_image files must exist
• Link Check (Lychee) against generated _site/**/*.html pages

Lychee is configured via .github/lychee.toml.

Legacy URL redirects

When an old external permalink breaks (for example, historical paths with spaces), preserve SEO by adding a static redirect page at the legacy path.

Recommended legacy redirect page pattern:

• rel="canonical" pointing at the current canonical URL
• meta name="robots" content="noindex,follow"
• immediate redirect (meta refresh + location.replace(...))

Example we added:

• legacy path: /data science projects/2016/10/07/insight-castle-compromised-account-detection/
• canonical path: /2016/10/07/insight-castle-compromised-account-detection/

This is the minimal-risk GitHub Pages approach when server-side 301 rules are not available.