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Add canonical URLs, Open Graph, and Twitter Card meta tags across key pages#2

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Add canonical URLs, Open Graph, and Twitter Card meta tags across key pages#2
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Copilot AI commented Feb 20, 2026 •
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Establishes consistent SEO metadata across the site using www.corelli.com as the canonical host (already set in CNAME, robots.txt, and sitemap.xml).

Changes

  • sitemap.xml: Added missing ai.html entry
  • All 8 key pages (index, about, news-index, musings, contact, gallery-lightbox, ai, nose): Added to <head> only — no layout changes:
    • <link rel="canonical" href="https://www.corelli.com/[page]" />
    • Full Open Graph block: og:title, og:description, og:url, og:type, og:image
    • Twitter Card block: twitter:card (summary_large_image), twitter:title, twitter:description, twitter:image
  • about.html and news-index.html already had partial OG tags (og:title, og:description, og:type); added the missing og:url, og:image, and all Twitter tags

Image selection for og:image (all existing assets)

Pages Image
home, about, musings, contact, ai images/about-adam-corelli.jpeg
news-index images/news-archive-front.jpeg
gallery-lightbox images/sunset-prince-edward-island.jpeg
nose images/nose.jpeg

Example (index.html)

<link rel="canonical" href="https://www.corelli.com/" />
<meta property="og:title" content="AdamCorelli.com" />
<meta property="og:description" content="Adam Corelli's archive of articles, photography, and musings." />
<meta property="og:url" content="https://www.corelli.com/" />
<meta property="og:type" content="website" />
<meta property="og:image" content="https://www.corelli.com/images/about-adam-corelli.jpeg" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="AdamCorelli.com" />
<meta name="twitter:description" content="Adam Corelli's archive of articles, photography, and musings." />
<meta name="twitter:image" content="https://www.corelli.com/images/about-adam-corelli.jpeg" />
Original prompt

Goal

Improve SEO and canonical URL consistency for the GitHub Pages site in Schnyarp/Corelli.

Current context

  • robots.txt currently references https://www.corelli.com/sitemap.xml.
  • sitemap.xml uses https://www.corelli.com/... URLs.
  • User states the repo’s CNAME is currently www.corelli.com.
  • The user wants recommendations on whether to change CNAME, and requests that we implement recommended changes and open a PR.

Requirements

  1. Canonical host decision + implementation

    • Recommend whether to keep www.corelli.com as canonical (by keeping CNAME as www.corelli.com) or to switch to corelli.com.
    • Implement the chosen canonical host consistently across:
      • CNAME
      • robots.txt sitemap link
      • sitemap.xml <loc> values
      • Add <link rel="canonical" ...> to key pages.

  2. Add/standardize SEO meta tags on key pages

    • For the following pages, ensure they have at minimum:
      • <title> (already present but verify)
      • <meta name="description" ...> (already present in most but verify)
      • <link rel="canonical" ...> matching the canonical host
      • Open Graph tags: og:title, og:description, og:url, og:type, and optionally og:image if a suitable existing image can be used.
      • Twitter card tags: twitter:card, twitter:title, twitter:description, twitter:image (if og:image used).
    • Pages:
      • index.html
      • about.html
      • news-index.html
      • musings.html
      • contact.html
      • gallery-lightbox.html
      • ai.html
      • nose.html

  3. Do not break existing design/layout

    • Only adjust the <head> blocks and canonical/metadata where needed.

  4. Validation

    • Ensure the sitemap remains valid XML.
    • Ensure robots.txt remains simple and valid.
    • Ensure canonical and OG URLs exactly match the chosen canonical host.

Notes

  • Use existing on-site images for og:image if reasonable (e.g., images/about-adam-corelli.jpeg for homepage, or another suitable image), but do not add new binary assets.
  • Keep changes minimal and consistent.

Files to change (expected)

  • CNAME
  • robots.txt
  • sitemap.xml
  • The HTML pages listed above.

Deliverable

Open a pull request against main with the above changes.

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@Schnyarp
Add canonical URLs, OG tags, Twitter card tags; add ai.html to sitemap
0f90a9f 
Co-authored-by: Schnyarp <211616771+Schnyarp@users.noreply.github.com>
Copilot AI changed the title [WIP] Improve SEO and canonical URL consistency for GitHub Pages site Add canonical URLs, Open Graph, and Twitter Card meta tags across key pages Feb 20, 2026
Copilot AI requested a review from Schnyarp February 20, 2026 23:55
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