SEO Check Liste
Autor: Vladimir Milivojevic
Datum: 10.10.2021
The only onpage and technical SEO checklist you need in 2022

Robots.txt
- Available or not?
- Doesn’t exclude important directories from crawling?
- Sitemap is linked?
Sitemap.xml
- Contains all URLs to be indexed
- Does not contain URLs that should not be indexed
- Is linked in Robots.txt?
Meta-Robots
- Available or not?
- Index/Follow used?
Canonical
- Available or not?
- Is canonical attribute self-referential?
Hreflang
- Available or not?
- Are all URL versions listed?
Paginierung
- <noindex, follow> from 2 page
- Pagination pages are correct with <link rel=“prev“> and <link rel=“next“> indicate (In spring 2019, Google announced that it would no longer take rel=”prev” and rel=”next” into account)
- Only self-referential canonical tags are assigned
Page Speed
- Mobile / Desktop – comparison
- Mobile: no throttling / 3G fast check
- PageSpeed Insights – LCP, CLS and FID
Browser-Caching
Website Compression
Content„Above the fold“
- Important content is displayed “above the fold”
- Rendering of content above the fold is not blocked by CSS and JS
Schema-Markup
- Available or not?
- Opengraph data is maintained
- Rich snippets
URL structure
- User-friendly navigation
- Logical site architecture based on keyword research
- Clear, short URLs (self-explanatory URLs)
- URLs that should not be indexed/crawled are excluded from this via robots.txt or meta-robots
Redirects
- All orphaned pages have a redirect target
Titel-Link
- Title links are assigned according to SEO best practice and contain focus keywords
Internal linking
- Internal linking set according to SEO best practice (focus keyword as anchor text)
- All internal links are absolute
- All link targets have HTTP status code 200
404-Page
- User-friendly and in the design of the website
- Returns 404 status
- Offers users options for action (e.g. search function, link to the start page/other areas of the website)
Image optimization
- All images are compressed (if possible < 100 KB)
- Image filenames optimized according to SEO best practice
- ALT attribute optimized according to SEO best practice