Megan Michelakos

March 24, 2026
w

Interested?

Ready to start a project? We're here to help you reach your organic marketing goals.

w

Let's Talk!

Contact us to learn more about our services and get a custom proposal for your organization.

Contact Us

The SEO Checklist for a New Website Your Dev Agency Doesn’t Have (But Should)

by | By Megan, SEO, Websites

Most websites launch without a single conversation about SEO. The design looks great, the dev team ships on time — and then the traffic doesn't follow. Here's the checklist you should bring to every website kickoff.

We see it all the time. A brand new website launches. It’s gorgeous. The colors are on point, the layout is clean, the photography is a chef’s kiss. The client is thrilled. Everyone high-fives.

And then… crickets.

Traffic drops. Rankings slip. Leads dry up. And somewhere in the post-launch chaos, someone finally asks the question that should have been asked months earlier: “Did anyone think about SEO for the new website before we built this thing?”

More often than not, the answer is no.

graphic illustrating a beautiful website that doesn't rank well after launch

To be fair to web developers — their job is to build something beautiful and functional. And they’re good at it. But beautiful and functional doesn’t automatically mean findable. In 2026, “findable” means a lot more than it used to. Your new website needs to speak to Google, to Bing, to the AI models crawling the web to answer people’s questions. If it wasn’t built with a clear SEO strategy from the start, you’re running a race with a flat tire.

Why Your New Website SEO Strategy Has to Start Before You Build

Here’s the thing about SEO for a new website: it’s so much easier to do it right during the build than to go back and fix it after the fact. Way easier. Think of it like insulating a house. You can absolutely add insulation after the walls are up, but you’re going to be tearing things apart, spending more money, and making a mess. If you just planned for it from the start, the whole process is smooth and nothing has to be undone.

This is actually why we build every Trebletree website with SEO baked in from day one. It’s not a separate phase or an add-on we bolt on at the end — it’s part of how we approach every project from the first conversation. Site architecture, URL structure, heading hierarchy, page speed, structured data, internal linking — all of that gets thought through before a single page template is designed. When SEO and development happen in the same room (or at least on the same project brief), the decisions that affect search visibility get made correctly the first time instead of being patched later.

When clients come to us after working with a dev agency that didn’t have that background, we’re usually untangling some version of the same knots:

  • Broken redirect chains from old URLs that had real ranking power
  • A heading structure that looks fine visually but is a jumbled mess for crawlers
  • Missing or duplicate meta tags across dozens of pages
  • Zero structured data (the stuff that helps you show up in rich results and AI-generated answers)
  • New content that completely ignored the keywords the old site had been building equity on for years

Every one of those things could have been handled during development. After the fact, it’s expensive, time-consuming, and sometimes you just can’t fully undo the damage — especially the traffic you lost in the window between launch and fix.

How We Actually Partner With Web Agencies

We genuinely love working alongside development agencies. We’re not here to step on anyone’s toes or tell a designer how to design. What we bring to the table is the search intelligence that makes sure all that beautiful work actually gets seen.

Here’s what a Trebletree pre-launch partnership typically looks like:

Pre-build SEO audit of your existing site. Before anyone writes a single line of code, we dig into what you already have. Which pages are driving traffic? Which URLs have link equity built up over time? What content is ranking and shouldn’t be cut? This alone has saved clients from some really painful post-launch traffic drops.

Keyword research to inform new content. A new site build is an incredible opportunity to go after searches you’re not currently capturing. We map out what your audience is actually typing (and asking AI chatbots) and make sure the new site architecture and content is built around that — not just around what looks good in a sitemap.

Technical SEO recommendations baked in from day one. Heading structure, title tags, meta descriptions, structured data (schema markup), image alt text, internal linking strategy, and canonical tags. We give the dev team a clear brief so these are implemented correctly the first time, not hacked in later.

A site that’s search, bot, and LLM-friendly from the inside out. This is the piece that matters more every month. Google’s AI Overviews, ChatGPT, and Perplexity — all of these are pulling from websites to answer user questions. If your site’s content and structure aren’t set up to be understood and cited by these systems, you’re missing an increasingly important visibility channel.

zoom call to discuss the seo checklist for a new website

The SEO Checklist for a New Website: Questions to Ask Your Dev Agency Before You Start

If you’re planning a website project and want to make sure you’re not building a beautiful site that no one can find, here are the questions you should be asking before a single wireframe gets drawn. Think of this as your new website SEO checklist — bring it to your kickoff meeting and thank yourself later.

About Your Existing SEO Equity

  • Will someone audit our current site’s rankings and traffic before we migrate to the new one?
  • How will you handle redirects for all existing URLs (especially ones that have backlinks or ranking history)?
  • Who is responsible for mapping old URLs to new ones and making sure nothing gets lost?

About Content Strategy

  • Is keyword research being done before we finalize the site architecture and page structure?
  • Who is writing the content, and do they have SEO guidance to work from?
  • Are we creating dedicated pages for the things we actually want to rank for, or is everything crammed onto a few general pages?

About Technical SEO Foundations

  • Will the site have a logical, crawlable heading structure (H1, H2, H3 used correctly, not just for aesthetics)?
  • Will each page have unique, optimized title tags and meta descriptions?
  • Is structured data (schema markup) being implemented? Which types are relevant for our business?
  • How will image alt text be handled at scale?
  • Will canonical tags be set up correctly to avoid duplicate content issues?
  • Is the site being built with clean URL structures (no weird parameters or unnecessary subfolders)?

About Performance and Indexability

  • What is the plan for Core Web Vitals? (Page speed, visual stability, interactivity)
  • Will the site be mobile-first?
  • Will Google Search Console and Analytics be set up before launch, not after?
  • Will an XML sitemap be generated and submitted at launch?
  • Is the robots.txt file being configured correctly so nothing important gets accidentally blocked?

About the Launch Plan

  • Is there a pre-launch SEO checklist that gets signed off on before the site goes live?
  • Will there be a post-launch monitoring period to catch any drops in traffic or crawl errors?
  • Who is responsible for SEO after launch? (This is critical. If no one owns it, no one does it.)

DOWNLOAD THE CHECKLIST

hand-drawn layout for a new website

Your New Website SEO Strategy Starts Before the First Wireframe

We always love it when a client books us for both the website and SEO. The integration is seamless, nothing falls through the cracks, and we can build the new website SEO strategy alongside the site itself rather than trying to reverse-engineer decisions made without us in the room.

But even if you’re working with a separate development agency, looping in your SEO partner early is one of the highest-leverage things you can do for a site launch. A pre-launch SEO audit is a great starting point. It gives you a clear picture of what you have, what you stand to lose if you’re not careful, and what opportunities the new build can pursue.

Your site launch should be a success across the board. Not just “it looks great and loads fast,” but “it ranks, it gets found, it drives business.” That doesn’t happen by accident.

Plan for it. Build for it. And bring your SEO partner to the table before the table is even set.


Ready to make sure your new website launches on a solid SEO footing? Our SEO audit is a great first step — whether you’re in early planning or already mid-build.

Megan Michelakos

Megan Michelakos, Co-Founder of Trebletree, is an organic strategist with a background in content development, SEO, creative direction, and business development. With a passion for crafting compelling narratives and optimizing content for search engines, Megan excels in driving organic growth and engagement for businesses. Her creative direction generates captivating brand experiences that resonate with target audiences. Megan’s business acumen and strategic mindset enable her to identify new opportunities, forge strategic partnerships, and drive growth. With her unwavering commitment to excellence and innovation, Megan plays a pivotal role in shaping the success of the company in the ever-evolving digital landscape.