Modern Web Performance & SEO Architecture
· 11 min read
Vyom Solution
Founder & Lead Designer
Vyom Solution is a web studio based in India, designing and building custom websites for founders worldwide.
Long-form companion
Want the full story, examples, and context? Read SEO Basics for a Brand-New Website: What Actually Matters First on the blog.
Performance is a ranking signal and a conversion signal. Users forgive ugly faster than they forgive slow — and Google measures what real devices experience.
This checklist reflects how we ship marketing sites on modern SSR frameworks: small JS, aggressive image discipline, and fonts that do not block paint.
▪Rendering strategy
Pick the simplest model that keeps TTFB and interactivity low.
| Pattern | When to use | Watch-out |
|---|---|---|
| SSG | Marketing pages, blogs, resources | Rebuild on content change |
| SSR | Personalized or auth-gated views | Cache HTML at edge where possible |
| ISR / hybrid | Large catalogs, frequent updates | Cache invalidation complexity |
| Client-only SPA | Dense dashboards behind login | Poor default for public SEO pages |
▪Image pipeline
Images are usually the LCP element. Treat them as a pipeline, not an upload folder.
- ✓Serve WebP/AVIF with fallbacks where needed
- ✓Explicit width and height on every content image
- ✓Lazy-load below-the-fold; priority only for LCP hero
- ✓Compress heroes to ≤ 200 KB when possible
▪Font and CSS discipline
Limit to two families; subset weights you actually use. Preconnect to font CDN; avoid invisible text during load.
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<!-- Load only weights 400, 600, 800 -->▪JavaScript budget
Marketing pages should not ship a framework’s entire kitchen sink. Audit bundles; defer analytics; hydrate only what must be interactive.
Pair this with the 39-point launch checklist before go-live.
- ✓Set a max JS budget per route (e.g. 150 KB gzip for homepage)
- ✓Remove unused UI libraries from landing templates
- ✓Measure in Lighthouse mobile, not desktop-only
▪Action Steps
- 1
Run Lighthouse mobile on homepage and one inner page; save reports.
- 2
Fix LCP element (usually hero image or font) first.
- 3
Set JS budget in CI or pre-launch review.
- 4
SEO fundamentals: blog SEO basics.
▪Frequently Asked Questions
Is 100 Lighthouse required?+
No — but sub-2.5s LCP and CLS under 0.1 are worth targeting for money pages.
Will a CDN fix everything?+
It helps TTFB and caching; it does not fix multi-megabyte heroes or JS bloat.
WordPress vs modern SSR?+
Either can be fast. WordPress needs plugin discipline; SSR needs bundle discipline.
