The median wait between a seed round and a Series A reached 616 days in Q2 2025, a little more than 20 months, according to Carta. The website that helped you raise was written for a few dozen investors. For the next 20 months, it has to convince people who will never see your deck.
Hylight is a good example. The Y Combinator-backed startup closed a $4 million seed round in April 2024. When they came to us about a year later, the technology was mature, the team was hiring and expanding, and the website still reflected an earlier stage of the company. The site we redesigned with them had one job: show the level of ambition they had reached, with use cases, technical articles and careers pages the team manages itself. Here is what should change after a seed round, what should stay, and when a full redesign actually makes sense.
Your audience changes the day the round closes
Before the seed, your website speaks to investors. After it, it speaks to buyers, candidates and partners, and in about 20 months to Series A investors who will check what you have proven since.
Each of these visitors arrives with a different question:
- Buyers: does this solve my problem, and has it worked for someone like me?
- Candidates: is this team serious, funded, and a place where I will do my best work?
- Partners and press: what exactly do they do, and who is behind it?
- Series A investors: what has changed since the seed, and how fast?
A site built around the vision and the size of the market answers none of these well. The story stays; the evidence has to catch up with it.
Replace promises with proof
After a seed round, the most valuable change is to swap claims for evidence: pilots, named customers, deployments, test results. A seed pitch sells what the technology could do; a post-seed website shows what it already does.
This matters because buyers increasingly decide alone. Gartner's research shows that 75% of B2B buyers prefer a sales experience without a sales rep. For a startup where the founders still run every sales call, the website is the only salesperson working at night.
In practice, proof takes a few concrete forms:
- Use-case pages: one page per type of buyer or application, in their vocabulary. Hylight's site presents its inspections by infrastructure, from roads and railways to power lines and pipelines.
- Case studies: one named customer, one problem, one measured result.
- Numbers with a handle: every metric attached to a comparison the buyer understands.
- Recent news: pilots, certifications and partnerships, dated and kept current.
Make hiring a page, not a footnote
Most of a seed round goes into people, so the careers page becomes one of the most important pages on the site. A link to a job board in the footer tells candidates that hiring is an afterthought.
A careers section that recruits covers four things: the mission in one sentence, the team with real faces and backgrounds, how you work, and the open roles with a clear process. For deeptech companies competing with large groups for engineers, the site is often where a candidate decides whether the risk of joining a startup is worth it. It is also a signal for the next round: open roles read as momentum.
Give your team the keys to the site
After a seed round, your website has to change every week, and your first marketing hire cannot wait for a developer each time. A site the team can edit itself is no longer a comfort; it is what keeps the content current.
That means a real CMS with structured content types: articles, case studies, use cases, jobs and press. It works with Framer, where the team edits pages visually, or with custom code on Astro and Next.js with a headless CMS such as Sanity. On Hylight's site, use cases, technical articles and careers pages all run on a custom CMS for exactly this reason. We compare both routes in Astro vs Next.js.
Announce the round on your own site first
Publish your funding announcement on your own domain before, or at the same time as, the press. Coverage and social posts will link to it, and every link sends visitors and search engines to your site rather than to someone else's.
Use the moment to update what the round changes: investor names where they add credibility, the team page, open roles, and a short press kit with logos, photos and a boilerplate paragraph. Journalists and future partners will look for them within days of the news.
When to redesign: before the next raise, not after this one
The right time for a full redesign is before a raise: before the seed, or ahead of the Series A. Right after closing, the targeted changes above bring more value than a rebuild, and the team's energy belongs to the product.
The redesign then becomes part of the Series A preparation. Aim for the new site to be live two to four months before you start meeting investors, as we explain in the investor-ready website. A focused marketing site takes 4 to 6 weeks once the brief is approved, and 8 to 12 weeks with branding, 3D scenes or custom animation. Budgets start around $6,000 and usually reach $20,000 or more with branding, custom 3D and full copywriting; we break the numbers down in how much a website redesign costs.
What to avoid: a rushed rebuild in the three weeks before a raise, and a new site that tells a different story from your deck.
Keep what already ranks
A redesign should never cost you the search traffic you built during the seed stage. The rule is simple: keep the URLs that already bring visitors, and redirect every URL that changes to its new address.
Google's documentation on site moves recommends permanent server-side redirects, 301 or 308, and warns that rankings can fluctuate temporarily while it recrawls the site. That is one more reason not to launch in the middle of a fundraise. When we moved our own site from Framer to Astro in September 2026, keeping every URL in the same form meant all 37 pages of the sitemap stayed indexed through the switch.
Checklist: your post-seed website in 30 minutes
- The hero sentence still describes what you do today, not only the vision.
- At least one named customer, pilot or test result is visible on the homepage.
- Each type of buyer has a page written in their words.
- The careers page lists open roles and shows the team.
- The funding announcement lives on your own domain, with a press kit.
- Your team can publish an article, a job or a case study without a developer.
- News and dates on the site are less than three months old.
- The date of your next redesign is set, two to four months before the Series A.
A post-seed website is a working tool, not a trophy for the round. We build these for technical founders in our web design for deeptech startups. If you just closed your seed and your website still pitches investors, talk to us.
