Google keeps getting more and more sophisticated, so it’s important to closely monitor your 404 errors and your site speed, on top of many other things that can affect your rankings.
I noticed there are two type of 404 errors – internal broken links which are easily fixed and other sites linking to page on your site.
I’m not sure what I can do about others linking to a page from my site. Some of these seem to be in iframes while others seem to be a snipped of SERP results.
Google reports these as 404 crawl errors. They do seem to drop off quickly but I’ve always wondered if these have some downside.
Anyone else have these?