Observed Signal · Jun 25, 2026 · Best Practice / Checklist · Source: DEV Community · Impact: 1/5 · Sentiment: Positive
5 Checks Before Deploying a New Website
A web developer shares a five-item pre-launch checklist built from repeated deployment mistakes: verify redirects and URLs, confirm technical SEO basics, test all important forms in production, audit performance (including Core Web Vitals), and double-check analytics/tracking. The author illustrates common failures—silent form errors, staging canonical tags leaking to production, robots.txt blocking crawlers, and URL-structure changes that caused an ~40% organic traffic drop in one redesign—and recommends manual, production-time verification (including Google Analytics, Tag Manager and Search Console) and a written checklist to avoid weeks of lost visibility or irrecoverable analytics gaps.
Practical deployment checklist useful to web developers and marketers to avoid common SEO, tracking and performance mistakes; helpful but not industry-shifting.
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Key Takeaways & Evidence Grounding
- The author recommends five mandatory pre-launch checks: redirects/URLs, technical SEO basics, form testing, performance auditing, and analytics/tracking verification.
- A redesign that changed blog URLs from /blog/post-name to /resources/post-name caused organic traffic to drop by close to 40% until redirects were implemented.
- The author insists on testing every important form on the live production site (desktop and mobile) using real submissions to confirm delivery and auto-responses.
- The author verifies Google Analytics, Google Tag Manager publication, and submits/verifies Search Console and the XML sitemap as part of the launch process.
Connected Companies & Entities
1 Entity mapped“I verify Google Analytics is firing correctly, on every page, not just the homepage where it's easiest to spot during a quick check....”
Ontology Mapping & Concepts
Related Market Signals & Shifts
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Common Technical SEO Mistakes Developers Should Avoid
This article outlines frequent technical SEO errors developers make that reduce search visibility despite solid engineering: accidentally blocking pages via robots.txt, relying on client-side JavaScript for critical content, duplicate URLs from parameters, missing canonical tags, ignoring Core Web Vitals, broken internal links, poor redirect handling during migrations, missing structured data, inconsistent HTTPS implementation, and skipping crawlability tests before launch. It recommends server-side rendering or pre-rendering for important content, canonicalization and redirect mapping during migrations, auditing HTTPS and structured data, and using tools like Screaming Frog and Google Search Console to test crawlability. The piece concludes with a promotional mention of a web development firm that integrates technical SEO into the build process.
Technical SEO Checks Before Creating More Content
A practical guide describing an ordered technical SEO checklist to run before investing in additional content. The author advises verifying HTTP responses, robots/canonical consistency, sitemap accuracy, internal linking, structured data validity, template-level performance, and that each page serves a distinct purpose. The process includes re-verification after deployment (e.g., via Search Console URL Inspection) and treats sitemaps as inventories rather than indexing fixes. The checklist aims to remove accidental crawl/indexation barriers so new content is built on a reliable foundation.
Three Post‑Deploy Checks for Cloudflare Pages Builds
A developer documents three lightweight post-deploy checks added after production-only failures for three static sites (aiappdex.com, findindiegame.com, ossfind.com) hosted on Cloudflare Pages with Astro 5 SSG. Check 1 verifies sitemap-index.xml is reachable (HTTP 200) and that generated sub-sitemaps (e.g., sitemap-0.xml from @astrojs/sitemap) contain expected URL counts (aiappdex.com threshold = 1,000). Check 2 runs a Node script (scripts/indexnow.mjs) to collect sitemap URLs and batch-submit them to IndexNow endpoints for Bing, Yandex, Naver and Seznam using site-specific keys; the author triggers this manually via a workflow_dispatch after deployment so URLs are live. Check 3 is a weekly Lighthouse spot-check (treosh/lighthouse-ci-action, cron Monday 04:30 UTC) across nine URLs to monitor Performance, CLS and accessibility trends without gating deploys. The checks target real failure modes encountered (redirect/_redirects issues, IndexNow 403s, layout regressions).
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