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Checkliste Barrierefreiheit und SEO für Redakteure

Accessibility, SEO, Usability

In General

  • First things first
    • Search engines do not always index the entire page if it is long. Content further down may not make it into the index.
    • Better usability if the visitor does not have to search for the content for a long time.
  • Page URLs should not change and if they do, they should be redirected (our system sets redirects automatically).
  • Link, link, link: Try to be linked by others (the better the other page is ranked, the better for us), link as much as possible yourself.

    •  The link text should indicate what to expect when the link is called up (do not link "here").

  • Responsive behaviour should be checked
  • Pay attention to page titles, these should be individual/unique, no multiple page titles
  • Subdivide texts, make them readable.Avoid "Word formatting".
  • „Word-Formatierungen“ vermeiden.

Semantics

Semantically correct marking up of text

  • Headings are declared as headings (not just highlighted in bold).
    • Hierarchy of headings is important for SEO. Optimally from H1 to max. H6 descending without gap. H1 is assigned automatically (first heading of the page).
    • Keywords should appear in headings (especially H1).
  • Lists (unnumbered or numbered) are declared as enumerations. Also consider nesting.
  • Tables as tables. Tables should not be used for layout purposes if they are not tabular data.
  • Use table legends
  • Highlighting through bolding in the text (keywords) → very important for SEO

Images

  •  File names should match the content of the image and contain a keyword
  •     Alt attributes
    • are indexed by search engines
    • help accessibility → read aloud by screen readers
  • Title attributes help people with barriers → tooltip when hovering over them with the mouse

Specifying the data globally via the file list (recommended) or "element-specific" for the respective content element

SEO only

  • Maintain keywords and descriptions in the page properties. Please do not overdo it with the keywords. A lot does not always help a lot. → Max. 10 keywords.
  • Avoid „Duplicate Content“
  • Avoid pages with very little content
  • Try to generate URLs that are as short as possible: remove certain words such as "and", "or" or "for", keywords are welcome in the URL.

Accessibility only

In General

  • The content is written in the simplest possible language.
  • Offer alternatives
    • Do not just upload a flyer with content for an event. PDFs are usually not accessible unless they have been specially prepared; making PDFs accessible is much more time-consuming than placing accessible content on a website.
    • Alternative text for images
    • Videos ideally with subtitle data or text alternative
  • Animations that run automatically (longer than 5 seconds) should be able to be paused (e.g. pause button for sliders).

  • Linked files with file sizes in the link text
  • Contrasts should be high enough (Color Contrast Analyser)

PDFS barrier-free

  • The PDF must be tagged.
  • Font enlargement must be possible and usefully usable (flow around).
  • There must be no formal deficiencies for important content.
  • The contents in the tag structure must be in a sensible order.
  • Important images must have meaningful alternative texts.
  • Tables must be correctly labelled.
  • PDFs with 3 or more pages must be structured by bookmarks.
  • The PDF must be structured correctly.
  • The main language must be indicated

Links