RIP Yahoo Site Explorer –

I recently was reviewing a customer website and found this markup, while it looked vaguely familiar, I had do do a little searching to find it’s original use.

<meta name=“y_key” content=“xxxxxx” />

This was for Yahoo Site Explorer, it existed for a little over six years, from September 2005 until November 2011!

It provided a lot of similar functions as the Google Search Console.??https://en.wikipedia.org/wiki/Yahoo_Site_Explorer

TLDR; If you find this markup in any website, it’s relatively safe to assume that you can remove it with very little impact other than some saved bytes in your network traffic.

Prevent Robots from indexing portions of content

Yahoo! initially introduced a CSS class that can be used to notify robots/spiders that a specific section or fragment of content should not be included for search purposes.

class=”robots-noindex”

REFERENCES:

robots-nocontent

SEO is always a tricky matter as it’s always changing, way back in 2007 Yahoo! added a means to ‘hide’ specific content on your page from it’s spider with the user of a CSS class that can be used anywhere on your page. True…. this can be abused, but is generally good to keep common content such as navigation and/or ads out of the index. Unfortunately, only Yahoo! supports this.

class="robots-nocontent"