Technical Diagnostic
A focused review of affected routes, templates, deployment behaviour, crawl signals, CMS behaviour, performance bottlenecks, or code paths, followed by a prioritised fix plan the team can take into delivery.
Technical SEO Recovery and Debugging for JavaScript Websites
This route is for the moment after the drop, when the site has already shipped and the question is no longer theoretical. The work starts by proving what changed, when it changed, which URL families moved, and whether redirects, canonicals, rendered HTML, metadata, sitemaps, robots rules, or internal links changed before rankings did.
Recover traffic, crawlability, indexation, and page‑level signals after a launch, redesign, release, migration, or template change alters what search engines can discover and trust.
Short Answer
Post‑change recovery is different from preventative technical SEO. The first job is not to assume algorithm volatility, content quality, or Core Web Vitals. I compare release timing, affected URL families, Search Console deltas, crawl paths, redirects, canonicals, rendered HTML, structured data, metadata, sitemap, and robots behaviour, and internal links, then order fixes by commercial exposure and fix confidence.
Why It Matters
When organic visibility has dropped, I help commercial teams separate ranking, rendering, crawl, indexing, redirect, and template faults so recovery effort is not spread across the wrong fixes.
Common Situations
- Traffic, rankings, indexed coverage, or crawl behaviour changed after a redesign, migration, deployment, or template release.
- Search Console data shows affected URL families, but the team has not yet tied them to a release, redirect, canonical, rendering, sitemap, or internal‑link change.
- Redirect, canonical, metadata, structured data, or sitemap mistakes are splitting, suppressing, or weakening commercially important pages.
Recovery work moves faster once ranking, rendering, crawling, redirect, and indexation failures are separated instead of treated as one general SEO drop.
What I Look at First
- I start with the release date, affected URL families, pre‑change and post‑change top landing pages, Search Console deltas, crawl logs where available, redirects, canonicals, rendered HTML, metadata, sitemap, and robots signals, and internal links.
- I use the Traffic Drop Triage Checklist to compare rendered output, indexable HTML, metadata, canonicals, redirects, internal links, structured data, crawl behaviour, Search Console data, and recent releases.
- For migration or redesign recovery, the Website Replatforming Risk Register helps separate launch‑risk gaps from symptoms that appeared after release.
- The recovery process starts by proving which technical signal actually regressed first, then sequencing fixes so recovery can ship without introducing a second wave of crawlability or indexation issues.
What Usually Changes
- Lost or damaged URLs are mapped against route, template, redirect, canonical, and rendered HTML changes.
- Crawl, rendering, indexing, metadata, and ranking signals are separated before recovery work starts.
- Search‑critical templates and internal links are checked against what users and crawlers can actually reach.
- Recovery actions are prioritised by commercial exposure and fix confidence.
- The team knows what to ship, what to monitor, and what evidence to re‑check.
How This Usually Works
Recovery Sprint
A short, concentrated engagement for a defined technical SEO, performance, CMS, Vercel, migration, or production issue where the business needs the cause isolated and the first fixes moved quickly.
Embedded Delivery Support
Senior hands‑on support inside an existing team where architecture, implementation, review, and delivery judgement all matter, especially when the work cannot be handed over as isolated tickets.
This May Not Be the Right Fit If
- You only need generic SEO content writing, a broad audit deck, or reporting that stops before engineering remediation. If the issue is a live traffic loss after a launch, Traffic Drop After a Redesign or Replatform may be the better starting point.
- The problem is not tied to rendered output, redirects, canonicals, crawl signals, or route behaviour that can actually be fixed. If the core issue is JavaScript rendering or indexing, JavaScript SEO Rendering and Indexing Fix is the more focused service.
Related Case Studies and Project Work
More Specific Service Pages
Traffic Drop After a Redesign or Replatform
Recover organic traffic after a redesign or replatform by isolating what changed in URLs, templates, rendering, metadata, or crawl signals before the drop compounds.
WordPress to Next.js SEO Recovery
Recover lost visibility after a WordPress‑to‑Next.js launch by finding what changed between the legacy WordPress output and the new rendered Next.js pages.
JavaScript SEO Rendering and Indexing Fix
Diagnose why Google is not indexing important JavaScript pages before incomplete HTML, unstable metadata, or routing changes keep them out of search.
Next.js Sitemap, Robots, and Crawlability Debugging
Fix sitemap, robots, and crawl‑discovery failures before important Next.js pages stay hidden, blocked, stale, or hard for search engines to trust.
Next.js Redirects and URL Normalisation Fix
Fix duplicate URLs, bad redirects, and canonical mistakes before search engines and users keep landing on conflicting versions of the same page.
Related Services
Technical SEO for JavaScript Applications
Preventative, engineering‑led SEO for React and Next.js sites where rendered HTML, indexable text, metadata, canonicals, links, structured data, and AI extractability have to be reliable before visibility is damaged.
Headless Architecture Consulting
Headless architecture advice before CMS, content model, preview, revalidation, metadata, schema, media, localisation, and editorial ownership decisions become expensive to reverse.
Performance Optimisation and Core Web Vitals
Route‑level performance work for modern front ends where field data, Core Web Vitals, scripts, fonts, images, data loading, or templates are weakening important user journeys.
Next.js Platform Consulting
Senior diagnosis for existing React and Next.js estates where routing, CMS, deployment, SEO, data ownership, and delivery risk have become one platform problem.
Related Technical Articles
Why JavaScript Pages are Crawled but Not Indexed. Why JavaScript Pages are Crawled but Not Indexed
Why JavaScript pages get crawled but not indexed, covering rendered content, metadata, canonicals, links, noindex rules, quality, and crawl signals.
Checking Rendered HTML for JavaScript Pages. Checking Rendered HTML for JavaScript Pages
Check rendered HTML for JavaScript pages by comparing source and DOM output across metadata, headings, links, schema, content, hydration, and crawlability.
How View Source Stopped Being Enough. How View Source Stopped Being Enough
Why view source stopped being enough for modern web checks, and how rendered HTML, hydration, metadata, schema, crawl paths, and client output changed audits.
Client‑Side Rendering and Search Visibility. Client‑Side Rendering and Search Visibility
How client‑side rendering can affect search visibility, and what to check around content, links, metadata, routing, loading states, and fallbacks.
JavaScript Rendering and SEO Checks. JavaScript Rendering and SEO Checks
JavaScript rendering and SEO checks for pages that rely on client‑side behaviour, including content, links, metadata, fallbacks, and rendered output.
Next.js Sitemap, Robots, and Crawlability Debugging Checklist. Next.js Sitemap, Robots, and Crawlability Debugging Checklist
A Next.js crawlability checklist for debugging sitemaps, robots.txt, canonicals, route generation, redirects, staging leaks, missing pages, and indexation.