No fixed age limit — watch for these 7 signals
The more of these you see, the stronger the case for a redesign:
- The layout breaks on phones, or readers have to pinch-zoom.
- Pages are indexed, but searching your business keywords doesn't surface you.
- The site generates almost no inquiries; sales depend entirely on cold outreach.
- The business or brand has evolved; the site still sells the old positioning.
- You can't update content yourself — every product tweak means calling the original vendor.
- Loading is visibly slower than competitors; search consoles flag experience issues.
- No HTTPS, no mobile layout — the technical base is a decade old.
Redesign vs rebuild: know which one you need
If the visuals are dated but the content structure is sound, a redesign keeps the information architecture and redoes the visual layer — roughly 40% the cost of a rebuild. If four or more of the signals above are present, the information architecture and content strategy need rethinking too, which means a rebuild.
A simple test: list your current pages and ask of each, "who is this page for and what action do we want?" The more pages without an answer, the closer you are to a rebuild.
The nightmare scenario: rankings wiped overnight
All the search equity an established site has earned is attached to specific URLs. The classic redesign accident: URLs all change, old addresses return 404, and years of indexing evaporate.
The correct three-step process: before the redesign, export the full list of indexed URLs; during planning, preserve high-value paths wherever possible and configure 301 permanent redirects for those that must change; after launch, submit the new sitemap immediately and watch crawl errors in Search Console.
Process and budget reference
Standard flow: content and structure audit (1 week) → visual design (1–2 weeks) → development and data migration (2–3 weeks) → launch with 301s (1 week). Visual-only redesigns run ¥8,000–20,000 (~$1,100–2,800); redesigns with structural rework and content rewriting run ¥20,000–50,000 (~$2,800–7,000).
Redesigns are high-leverage: the same traffic through a better conversion path typically lifts inquiry rates noticeably — because the real problem with most old sites isn't that nobody comes, it's that visitors don't trust, don't understand, or can't find the contact button.
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