It is mid-July, 2015. Google has just started sending notices to webmasters of sites that implement hreflang incorrectly. Distilled has launched an open-source tool for SEOs to test their sites’ Hreflang implementation. This was much-needed because well-known international SEO consultant Aleyda Solis’s tool to generate hreflang tags, while useful, wasn’t something that SEOs can use to validate hreflang tags on hundreds of pages on their sites.
Author: Nick Jasuja
Nick Jasuja is the founder of Hreflang.org and Diffen, the world's largest collection of unbiased comparisons. Diffen's expansion to Spanish was Nick's first foray into international SEO and motivated him to launch the Hreflang testing tool. You can find him on Twitter @thisislobo.