Skip to content
Technical SEO · Crawlability · Indexing · Core Web Vitals · Schema

Technical SEO – the invisible foundation of every ranking.

If Google can't crawl, index or understand your pages, the best content in the world won't help. We make your website technically crawlable, fast and machine-readable – with log file analysis, schema implementation and Core Web Vitals tuning.

  • Crawl budget optimization
  • Structured data
  • Core Web Vitals
  • Log file analysis
TL;DR

Technical SEO handles everything search engines need to understand before the content: crawlability, indexing, performance, security, structured data. It's the layer where a single mistake can make hundreds of pages invisible.

Shown visually

Core Web Vitals in the green

Speed, responsiveness and stability are ranking factors. We get your site past all three thresholds – measured on real devices.

1,8 sGut
LCP · loading
120 msGut
INP · response
0,04Gut
CLS · stability
What a clean robots.txt looks like

A practical example with crawl budget control

# Loomup standard robots.txt (example)
User-agent: *
Allow: /
Disallow: /search
Disallow: /?*page=
Disallow: /admin/
Disallow: /api/

# Explicitly allow AI crawlers
User-agent: GPTBot
Allow: /

User-agent: PerplexityBot
Allow: /

# Sitemaps
Sitemap: https://ihre-domain.de/sitemap.xml
Sitemap: https://ihre-domain.de/sitemap-news.xml
Technical SEO reality in numbers

What we typically find during audits

63 %
of mid-market sites have ≥1 critical technical errorLoomup audits 2024–2026
28 %
of money pages are deindexed by incorrect canonicalsLoomup sample
× 3.2
crawl frequency after crawl budget cleanupLoomup cases
INP < 200ms
Core Web Vitals threshold in effect since 03/2024Google CrUX
Technical SEO levers in detail

Seven areas where mistakes are most costly

Crawlability

robots.txt, XML sitemap, crawl budget control. We make sure Googlebot finds your important pages – and ignores the unimportant ones.

Indexing

Canonical tags, noindex control, pagination, duplicate content. Essential for shops and multi-language setups.

Core Web Vitals

LCP, INP, CLS. We optimize server response, the image pipeline, JS bundles and font loading.

Structured data

Organization, Service, Product, FAQPage, Article, Person, BreadcrumbList, LocalBusiness – cleanly validated.

Internal linking

Link equity distributed across the site architecture – hub-spoke clusters, anchor texts, crawl paths.

Log file analysis

What Googlebot actually crawls – not what we assume. Log file analysis reveals hidden crawl problems.

Multilingual

hreflang setup, mirrored URL structure, x-default. Essential for DE/EN setups.

Mobile-first

Mobile index, responsive rendering, touch targets, correct viewport.

What we actually check

32-point Technical SEO audit checklist

robots.txt correct, all important areas accessible
XML sitemap up to date, submitted in Search Console
Canonical tags set consistently
No unintended noindex tags on money pages
HTTPS everywhere, correct HSTS headers
Clean 301 redirects, no chains
Crawl budget waste from filter URLs prevented
Structured data validated (schema.org)
Core Web Vitals in the green
Mobile usability error-free in Search Console
Pagination correct (rel=next/prev or unique URLs)
Lazy loading for images without LCP loss

More than 60 % of all mid-market websites have at least one critical technical SEO error that unintentionally caps their ranking – usually without the owner ever knowing.

Loomup audit sample (2024), n=140
Good to know

The key questions, answered briefly

How do I spot technical SEO problems?

Typical signs are non-indexed pages, slow load times, errors in Google Search Console, duplicate content from parameter URLs, or poor mobile rendering. A Technical SEO audit uncovers these problems systematically.

How important are Core Web Vitals for ranking?

Core Web Vitals (LCP, INP, CLS) are a confirmed Google ranking factor and also affect bounce rate. They rarely decide a ranking on their own, but in tight competition they're the difference between page 1 and page 2.

Audit areas

What does a Technical SEO audit check?

Technical SEO makes sure search engines can capture your site without errors. The core areas:

Crawlability: robots.txt, internal structure, no dead ends.
Indexing: canonical tags, no unintended noindex.
Sitemap: up to date, complete, submitted.
Rendering: JavaScript content visible to Google.
Core Web Vitals and HTTPS security.
Structured data without errors.
Concept

What is crawl budget and when does it matter?

Crawl budget is the number of pages Google crawls within a given period. For small websites it's rarely an issue. It becomes relevant for large sites with thousands of URLs – such as online shops with many filter combinations. In those cases we make sure Google focuses its resources on the important pages instead of getting lost in unimportant parameter URLs.

Written & expert-reviewed by
Photo of Seth Iorio, Founder & Head of Visibility & Industries at Loomup

Seth Iorio

Founder & Head of Visibility & Industries at Loomup

Seth Iorio leads visibility across every channel at Loomup – SEO, GEO/AI visibility, local visibility, social and content – plus industry-specific strategy. His focus: making companies visible exactly where their customers search and decide.

FAQ

Frequently asked questions

How much work is a technical SEO audit?

A full audit usually takes 5–10 working days. At the end you receive a written report with prioritized findings and implementation instructions – including a quick-wins list of immediate actions.

Can you fix Core Web Vitals retrospectively too?

Yes. In most projects without a full relaunch we reach green scores through image optimization, targeted JS splitting, caching adjustments and CDN configuration.

What happens after the audit?

We either implement the optimizations directly in your CMS or deliver an implementation-ready specification to your developer team. Afterwards: a re-audit to measure success.

Do we need Technical SEO if our content already ranks?

Yes, in most cases. Technical issues often cap the full potential – pages rank in position 4–7 when, with clean tech, they could reach the top 3. An audit is especially worthwhile for established domains.

Get started

Ready to use this lever?

In the free Visibility Check we look together at whether and how this service fits your situation – including a concrete set of recommended actions.

Request a Technical SEO audit →
No obligation · Nationwide · Reply within one day