How to avoid Duplicate Content issues when dealing with 'Language Only' and 'Language and Location' URLs
11295
What is duplicate content and how can I avoid being penalized for it on my site?
129486
Should we localize URLs for default language or not?
96078
How to prevent access to Views-only content?
93469
Absolute vs relative URLs for SEO
59794
Combinining all language related sites into one
68338
URLs: Should I use hyphens, underscores or plus symbols?
24029
Ways to circumvent the same-origin policy
101748
Duplicate / Similar content across many articles
113164
Will a site URL with repeating keywords get penalized by search engines?
89100
Mapping multiple URLs to same page
155813
Prevent Wordpress from automatically correcting URLs
54258
Have Google index different languages at the same URL instead of just the default (English)
124219
Is Double-Annotating HREFLANG always alright? What if I remove one of them?
127350
When translating a site go with URLs in Chinese or English?
149300
How do I apply URL normalization rules in PHP?
125588
How to disable percent-encoding in URLs?
31047
Implement country and language redirects (US, CA, En and Fr) in IIS