5291 x robots tag

Applies to https://github.com/GigaOM/gigaom/issues/5291
Wijax request on the main waterfall:
![screen shot 2014-09-15 at 11 33 49 am](https://cloud.githubusercontent.com/assets/929375/4273830/51d0237c-3cee-11e4-8336-4b0de6e30d89.png)