I need proxies for guest blog posting and forum posting. Not for backlink, just for brand awareness. Which are the type of proxies that don't get detected as being proxies by webmasters? I need to post in regional websites so I'd need proxies for Spain, Italy, Portugal, Germany and UK but stable with same IP for at least 30 up to 60 days at least. What are some good choices? I know Marketplace has a ton of offers but I need some that have stable IP for at least 30-60 days and are undetectable by webmasters (from a proxy point of view, not browsing particularities related).