feat(seo): branded social cards, /cv landing page, single-source meta - #11
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Fixes two LinkedIn share problems and hardens SEO benchmarks: - Pixelated logo: og:image/twitter:image were the 48x48 favicon. Add a 1200x630 branded share card (og-image.png) and point all OG/Twitter image tags at it. Person.image -> real 500x500 profile.png. - CV had no preview: a raw .pdf URL exposes no OG tags. Add a prerendered /cv landing page (cv-thumb preview + View/Download + CreativeWork JSON-LD) with its own cv-og.png card, so the shared URL renders a real preview. - Single source of truth: SeoHead now owns all SEO meta; remove the duplicated static block from index.html. This eliminates conflicting og:image/og:title/<title> tags that the prerenderer was emitting on every non-home route (latent bug that gave about/experience/toolbox the home page's social title). - Enrich head: og:image width/height/type/alt, og:locale, twitter:image:alt, apple-touch-icon, web manifest, light/dark theme-color, multi-size favicons. - Add /cv to sitemap.xml and the prerender include list; nginx serves the PDF inline and caches share/icon assets. scripts/og-image.cjs is a one-off author-time generator (not in the deploy build); the produced PNGs are committed under public/. Verified: build + prerender pass; each route emits one correct og:image / title / canonical; JSON-LD parses; 62 vitest tests pass; eslint clean. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Why
Two LinkedIn share problems, same root cause:
og:image(+twitter:image, JSON-LDPerson.image) pointed at the 48×48 favicon, so LinkedIn upscaled it → pixelated logo. And the CV is shared as a rawMitya_Kurs.pdfURL — a PDF has no HTML head, so LinkedIn can read no preview tags → no image.What
public/og-image.png) now backsog:image/twitter:image;Person.image→ real 500×500profile.png./cvlanding page (src/pages/cv/cvPage.tsx): CV first-page thumbnail, View/Download buttons,CreativeWorkJSON-LD, and its owncv-og.pngcard → the shared URL renders a real preview.SeoHeadowns it all; removed the duplicated static block fromindex.html. This also fixes a latent pre-existing bug — the prerenderer was emitting two conflictingog:title/<title>tags on every non-home route (about/experience/toolbox were inheriting the home page's social title).og:image:width/height/type/alt,og:locale,twitter:image:alt,apple-touch-icon, web manifest, light/darktheme-color, multi-size favicons./cvadded tositemap.xml+ prerender include; nginx serves the PDF inline and caches share/icon assets.scripts/og-image.cjsis a one-off author-time generator (not wired into the deploy build); produced PNGs are committed underpublic/.Verification
npm run build+ prerender ✅ — every route emits a single correctog:image(home→og-image.png,/cv→cv-og.png),<title>, and canonical;noindexon 404./cvinspected in light/dark/mobile.…/Mitya_Kurs.pdf→https://profile.mitya.dev/cv.https://profile.mitya.dev/andhttps://profile.mitya.dev/cvin the LinkedIn Post Inspector to bust LinkedIn's OG cache.🤖 Generated with Claude Code