Things Google Tells You to Avoid With Googles New 2018
(All taken from: https://support.google.com/webmasters/answer/7451184)
Here are all of the things I found:
Using a single title across all of your site's pages or a large group of pages
Using extremely lengthy titles that are unhelpful to users.
- Stuffing unneeded keywords in your title tags.
- Using a single description meta tag across all of your site's pages or a large group of pages
- Placing text in heading tags that wouldn't be helpful in defining the structure of the page.
- Using heading tags where other tags like and may be more appropriate.
- Erratically moving from one heading tag size to another.
- Excessive use of heading tags on a page.
- Very long headings.
- Using heading tags only for styling text and not presenting structure.
- Using invalid markup
- Changing the source code of your site when you are unsure about implementing markup
- Adding markup data which is not visible to users.
- Creating fake reviews or adding irrelevant markups.
- Creating complex webs of navigation links, for example, linking every page on your site to every other page.
- Going overboard with slicing and dicing your content (so that it takes twenty clicks to reach from the homepage).
- Having a navigation based entirely on images, or animations.
- Requiring script or plugin-based event-handling for navigation
- Letting your navigational page become out of date with broken links.
- Creating a navigational page that simply lists pages without organizing them, for example by subject.
- Blocking 404 pages from being crawled through the robots.txt file.
- Providing only a vague message like "Not found", "404", or no 404 page at all.
- Using a design for your 404 pages that isn't consistent with the rest of your site.
- Using lengthy URLs with unnecessary parameters and session IDs.
- Choosing generic page names like "page1.html".
- Using excessive keywords like "baseball-cards-baseball-cards-baseballcards.htm".
- Having deep nesting of subdirectories like ".../dir1/dir2/dir3/dir4/dir5/dir6/page.html".
- Using directory names that have no relation to the content in them.
- Having pages from subdomains and the root directory access the same content, for example, "domain.com/page.html" and "sub.domain.com/page.html”
- Writing sloppy text with many spelling and grammatical mistakes.
- Awkward or poorly written content.
- Embedding text in images and videos for textual content: users may want to copy and paste the text and search engines can't read it.
- Dumping large amounts of text on varying topics onto a page without paragraph, subheading, or layout separation.
- Rehashing (or even copying) existing content that will bring little extra value to users.
- Having duplicate or near-duplicate versions of your content across your site.
- Inserting numerous unnecessary keywords aimed at search engines but are annoying or nonsensical to users.
- Having blocks of text like "frequent misspellings used to reach this page" that add little value for users.
- Deceptively hiding text from users38, but displaying it to search engines.
- Writing generic anchor text like "page", "article", or "click here".
- Using text that is off-topic or has no relation to the content of the page linked to.
- Using the page's URL as the anchor text in most cases, although there are certainly legitimate uses of this, such as promoting or referencing a new website's address.
- Using excessively keyword-filled or lengthy anchor text just for search engines.
- Creating unnecessary links that don't help with the user's navigation of the site.
- 1.jpg" when possible—if your site has thousands of images you might want to consider automating the naming of the images.
- Writing extremely lengthy filenames.
- Stuffing keywords into alt text or copying and pasting entire sentences.
- Attempting to promote each new, small piece of content you create; go for big, interesting items.
- Involving your site in schemes53 where your content is artificially promoted to the top of these services.
- Spamming link requests out to all sites related to your topic area.
- Purchasing links from another site with the aim of getting PageRank.