The "SEO Checklist" for Developers: 5 Things You’re Forgetting Before You Hit Deploy

We’ve all been there: You build an amazing tool in Firebase, the UI is clean, the logic is solid, and you push to production... only to get zero traffic. As a developer who spent 1.5 years in the SEO trenches, I’ve realized most devs treat SEO as an afterthought. Here’s how to fix that in 10 minutes. 1. The "Social Preview" (Open Graph) Meta Tags If your tool is shared on LinkedIn or X (Twitter) and it doesn't have a custom image and title, nobody will click it. The Fix: Use a dynamic OG image generator. If you’re using Firebase, you can actually automate this with a Cloud Function. 2. Semantic HTML > Div Soup Google’s AI crawlers in 2026 are smart, but they still rely on structure. Stop using <div class="title"> and start using proper <h1>, <h2>, and <main> tags. It’s the difference between being "scanned" and being "indexed." 3. The Robots.txt & Sitemap Secret If you’re hosting on a subdomain (like I am with toolshub123.hashnode.dev), you need to ensure