Why do SEO & Web Development go hand in hand?
Most technical SEO problems are created, or prevented, during development. When SEO specialists are involved from the design stage, developers build crawlable navigation, fast templates, correct redirects and server-rendered content from the start, which is far cheaper than fixing them after launch. Key takeaways When should SEO and developers work together? When building a new […]
Most technical SEO problems are created, or prevented, during development. When SEO specialists are involved from the design stage, developers build crawlable navigation, fast templates, correct redirects and server-rendered content from the start, which is far cheaper than fixing them after launch.
Key takeaways
- Involve SEO early: at planning and design, not after launch.
- Biggest risks: content and links only in JavaScript, missing redirects in a redesign, an indexable staging site, slow templates.
- Use a shared checklist (below) and verify each change before release.
- Redesigns and migrations need a redirect map from every old URL to its new equivalent.
- AI crawlers mostly don’t run JavaScript, so server-rendered HTML matters more than ever.
Make your brand visible – from Google to AI chatbots.
When should SEO and developers work together?
When building a new site
SEO specialists define requirements for structure, URLs, templates and content before development starts, and check implementation at each stage.
“Building any web solution: a Website or an e-commerce store in accordance with the search engine rules is a must, especially now. Elements such as headlines structure, URL-s, optimization of meta tags are a part of it and cooperation with an experienced SEO specialist is crucial.” – Greg Rogoziński, CEO, Cut2Code
When redesigning or migrating
Redesigns are where most organic traffic is lost: changed URLs without redirects, removed content, new templates without headings or internal links. Plan the move with a redirect map and checklist and compare crawls before and after launch.
When the site runs but underperforms
A technical SEO audit lists issues and recommendations; developers and SEO then plan, implement and verify them together.
What should developers check for SEO?
| Area | What to do | Why |
|---|---|---|
| Rendering | Server-side rendering or static generation for key content; avoid content only after JS (JS SEO) | Google renders with a delay; most AI crawlers don’t render JS |
| Links and navigation | Use <a href> with real URLs for menus, pagination and filters (link best practices) | Crawlers follow links, not click handlers |
| URLs | Readable, stable, lowercase, one version (https, www or not) via 301 | Avoid duplicates and lost signals |
| Status codes | 200 for live pages, 301 for moved, 404/410 for removed; no soft 404s | Correct indexing |
| Indexing controls | Correct robots.txt, meta robots, canonicals, XML sitemaps; no noindex left from staging | See indexing problems |
| Mobile | Responsive design; same content and structured data on mobile (mobile-first) | Google indexes the mobile version |
| Performance | Meet Core Web Vitals (LCP, INP, CLS) on key templates | Page experience and conversions; see page experience |
| Images | WebP/AVIF, sizes, width/height, alt text; lazy-load below the fold but not the LCP image | Speed, CLS, Google Images |
| Headings and metadata | Editable title, description and one H1 per template in the CMS | SEO team can optimize without code changes |
| Structured data | JSON-LD generated from the same data as the page (which types) | Rich results; consistency |
| Faceted navigation | Index only valuable filter combinations; others noindex or canonical | Avoid crawl waste and thin pages |
| International | hreflang and per-language URLs (international SEO) | Right version for each market |
| Accessibility | Semantic HTML, contrast, keyboard navigation; EU accessibility rules since June 2025 | Users, compliance, also helps parsing |
Don’t let staging get indexed
Development usually happens on a staging environment (e.g. staging.domain.com). Two common mistakes:
- Absolute links to staging left after launch (e.g. https://staging.domain.com/downloads/graphic1.png), which break when staging is removed. Use relative paths or environment variables.
- Indexable staging: Google indexes both staging and the live site, creating duplicates. Protect staging with a password or IP restriction, and make sure no noindex or robots.txt block is copied to production at launch.
Let your customers find you, wherever they look.
How should SEO specialists and developers work together?
- Get to know the project: design, structure, technologies, CMS and how each element will be built.
- Define SEO requirements: specific, testable guidelines with the expected effect and risks.
- Developer feedback: which requirements are clear and feasible, which need changes.
- SEO feedback: agree on the final version; repeat steps 3–4 if needed.
- Verify each implementation on staging (crawl, rendered HTML in DevTools, Lighthouse); respond quickly so development isn’t blocked.
- Pre-launch check and monitoring: go through the whole list, then watch Search Console, logs and rankings for 4–8 weeks after launch.
Add automated checks to the release process (for example status codes, canonicals, noindex, title and H1 presence, Lighthouse scores in CI), so regressions are caught before they reach production.
“From the web development company point of view, implementing SEO tools and recommendations before publishing the website reduces the costs and time needed to implement changes after it has been launched. That is why cooperation with SEO specialists is so important at the stage of planning coding works and development itself.” – Greg Rogoziński, CEO, Cut2Code
See what happens when a production config change goes wrong: our robots.txt and server error case.
FAQ
When should an SEO specialist join a web development project?
At the planning and design stage, before templates and URLs are built. Fixing SEO issues after launch is slower and more expensive.
How do I avoid losing traffic in a redesign?
Map every old URL to its new equivalent with 301 redirects, keep valuable content and internal links, compare crawls before and after, and monitor Search Console after launch.
Is JavaScript bad for SEO?
No, but content and links that appear only after JavaScript runs are indexed later by Google and usually not seen by AI crawlers. Server-side rendering or static generation avoids this.
How do I stop a staging site from being indexed?
Protect it with a password or IP restriction. Noindex can be added as a backup, but make sure it isn’t copied to the live site.
Sources
- Google Search Central: JavaScript SEO basics
- Google Search Central: Link best practices
- Google Search Central: Mobile-first indexing best practices
- Google Search Central: Site moves with URL changes
- Google Search Central: Block indexing
- Google Search Central: Image SEO best practices
- web.dev: Web Vitals and Don’t lazy-load the LCP image
- Vercel: The rise of the AI crawler
About the author: This article was prepared by the Insightland SEO and GEO team. Insightland is a Wrocław-based agency, part of the Hexe Capital Tech Hub, that connects business, tech and data: SEO and GEO, performance marketing, UX and analytics, and SEO and AI training. Contact us.
