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SEO · Technical

Technical SEO for sites that live or die on engineering

Crawl, render, index, schema, Core Web Vitals. The infrastructure work that decides whether the rest of your SEO ever pays back. Done by engineers, not checklist agencies.

Engineering-grade SEO for teams who own their stack

About Technical SEO

Why technical SEO still decides ranking outcomes in 2026

Content gets the credit; technical health gets the blame. AI Overviews and Gemini SGE made this harder, not easier — they only cite pages that render fast, parse cleanly, and prove their entity with structured data. If your Core Web Vitals are red, none of your content strategy matters.

What an honest technical SEO engagement includes

  • Full crawl audit with log-file analysis — what Googlebot actually sees, not what theory says
  • Core Web Vitals fix plan with engineering tickets ready for your dev team
  • Schema.org markup mapped to your entity model + tested in Rich Results
  • Render-budget audit for JS-heavy sites (Next.js, React, Vue, Angular)
  • Indexation cleanup — duplicates, parameter URLs, faceted nav, sitemaps
  • AI-search readiness — entity signals, llms.txt, structured citations
Mukesh Kumawat
Founder & Head of SEO, Galaxywing
What We Fix

Five technical levers that move rankings

Each one is grounded in something we can measure before and after — not vibes, not "best practices."

Core Web Vitals — LCP, INP, CLS

LCP INP CLS

2026’s Core Web Vitals trio (INP replaced FID in 2024) is one of the few ranking factors Google has confirmed publicly. We profile your real-user data via CrUX, identify the specific resource or JS task killing each metric, and ship engineering tickets your dev team can action — not “compress images” generic advice.

See a sample CWV audit

Crawl + index control

robots.txt XML sitemaps log files

Most large sites waste Googlebot’s crawl budget on URL variants, paginated archives, and faceted-nav permutations that should never have been indexed. We pull your server logs, find where the budget actually goes, and fix the leaks — usually with measurable indexation gain within 2-4 weeks.

Get crawl-budget review

Schema + structured data

JSON-LD Organization Product FAQ

Schema isn’t a “nice to have” anymore — it’s how AI Overviews and SGE understand what your page is and whether to cite it. We model your site’s entity graph (Organization → Brand → Person → Product → Article) and ship validated JSON-LD that survives Rich Results testing AND the Google Search Console live test.

Schema strategy call

JavaScript rendering

SSR ISR Hydration

If your site is React/Next/Vue/Angular, Googlebot has to render every page twice (HTML + JS pass). That doubles your crawl cost — and if hydration fails on critical content, that content effectively doesn’t exist for search. We audit the rendered DOM vs. source, pick SSR/ISR/SSG per route, and ship the change.

JS rendering audit

AI search readiness

AI Overviews llms.txt entity SEO

Gemini SGE, ChatGPT Search, Perplexity — all cite pages with strong entity signals, clear answer structure, and citation-worthy authority. We optimise your content for AI citation patterns (concise answers near headings, structured facts, source freshness) so you don’t disappear when search becomes generative.

AI-search SEO audit
Site feeling slow or under-indexed? Free 30-minute technical SEO review — we tell you the three highest-impact fixes before you commit a penny.
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In This Guide

The 2026 guide to technical SEO that actually moves rankings

A no-fluff walkthrough of where technical SEO matters now, what to ignore, and how to ship fixes your dev team will accept. Written for technical SEOs and dev-aware founders.

01 Why technical SEO compounds while content decays

Most SEO budgets go into content. Content is essential — and content alone is also why most SEO investment underperforms. A page that loads in 4.2 seconds, fails to hydrate cleanly, and ships no structured data will lose to a half-as-good page that runs on a properly tuned stack. Every time.

Technical fixes compound differently than content. One bug fix lifts every page that ever loads it; one new article only lifts itself. That’s why the agencies that win the long game lead with technical and treat content as the amplifier.

  • Persistent gain: a Core Web Vitals fix in March is still earning rankings in October.
  • Compounding leverage: indexation cleanup makes every future piece of content findable.
  • Defensibility: competitors can copy your content; they can't copy your stack overnight.

02 The full 2026 technical audit, end to end

Every engagement starts with the same five-stream audit. We pull server logs, run a full crawl, measure CrUX + lab metrics, validate every piece of structured data, and trace the JS rendering path on a sample of priority templates. By the end of week 1 you have a ranked ticket list — by impact, not alphabetical.

  • Crawl audit: Screaming Frog or Sitebulb at full depth, compared to your XML sitemap and server logs.
  • Vitals profile: CrUX field data + Lighthouse lab data, segmented by template type.
  • Schema validation: every JSON-LD blob run through the Rich Results Test and Schema.org validator.
  • Rendering check: rendered DOM vs. source HTML — what survives the hydration round-trip.
  • Indexation map: Search Console coverage report cross-referenced with your sitemap.

Half the technical SEO advice on the internet is still optimising for Google as it was in 2018. The 2026 reality is that AI Overviews, Gemini SGE, ChatGPT Search and Perplexity now sit between users and your site for many queries — and they cite based on entity strength, citation freshness, and answer-shaped content structure.

This is mostly a content-and-structure problem, but the technical foundation matters: clean schema markup, concise answer blocks near headings, an llms.txt file declaring how AI agents should treat your content. None of these are silver bullets. All of them improve your citation odds.

Galaxywing Technical SEO Services

  • Entity definition: Organization / Brand / Person schema that links to your knowledge-panel-worthy authority sources.
  • Answer shaping: 2-3 sentence direct answer in the first 100 words below an H2.
  • Citation-ready facts: dates, numbers, and named sources structured so an LLM can lift them confidently.
  • llms.txt + robots.txt: explicit signals about what AI agents may and may not use.

04 Pricing, timelines, and what to expect

A full technical audit runs $4,500-$8,000 fixed, depending on site size and template count, delivered in 2 weeks. Implementation of the resulting ticket list is either handed to your engineering team or done by us on a retainer ($6,500-$12,000/month for 40-80 senior hours).

Expect the first measurable Search Console improvements within 4-8 weeks of shipping the priority fixes. Major ranking shifts on competitive terms take 3-6 months — we’ll tell you straight if your timeline expectations don’t match reality.

Crawl Budget and Indexation

Crawl budget is finite. Big sites with millions of URLs lose rankings simply because Google never crawls the pages that matter. We audit log files, fix infinite-redirect chains, prune low-value pages, deploy clean XML sitemaps, and surface fresh content to Googlebot fast — so your most valuable pages get crawled and indexed within hours, not weeks.

How Schema Markup Earns Rich Snippets and Higher CTR

Schema markup tells Google exactly what your page is about — and rewards you with rich snippets, FAQ accordions, breadcrumbs, product pricing, and review stars right in the SERP. We deploy structured data on every template, validate with the Rich Results Tool, and pair it with conversion-tuned content so the click actually converts.

Beyond the basics, we layer Article, Product, FAQ, HowTo, LocalBusiness, Event, and Review schema where each fits — earning the kind of SERP real estate that doubles your CTR even when your ranking position doesn't change.

Want us to scan your site before you commit? Free 30-min review on the three highest-impact technical issues we find. Book the free review
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Senior technical SEOs · log-file analysis · engineering tickets, not "best practices"