PageRank. Don't do this, not even on pages you don't want indexed. If you want to keep a page out of the index, use this in your HTML header: The above directive prevents the page from showing up in search results but recommends the search engine to follow the links on the page. This way, any PageRank that leaks into the unindexed page will be sent back to your site via the links on the page, rather than being flushed. 2. Not using canonization The rel=canonical tag in the HTML header looks like this: It tells search engines that instead of the current page, the linked
URL should be treated as "canon" by search engines. Why would you use this tag? The goal is to prevent duplicate content from being indexed, which can dilute your authority on search engines. Using the canonical tag also seems to pass PageRank jewelry retouching service from the non-canonical page to the canonical page, so there's no need to worry about the non-canonical page losing the accumulated PageRank. This is a place where conversion optimizers can often fail. Alternate pages in an A/B test must use the canonical tag so that the alternate page is not indexed (and for any authority the
alternate page picks up to pass to the main page). Variations on product pages, such as variations with a different color, are another common example. Duplicates can also be created whenever URL query strings are used. For this reason, site-wide canonicalization can be a good solution for sites that use query strings. Self-referencing canonical pages are generally not seen as a problem. 3. Misuse of Outbound Links If you link to another site in your site navigation and it's not one of your social media profiles, chances are you'll remove the link. From a pure PageRank perspective, external links dilute the authority that is returned to your own site.