Pngyu vs WoSign
A side-by-side look at Pngyu and WoSign. For an in-depth review of either product, follow the links below.
Pngyu
Photos & Graphics
Pngyu is a free online PNG image file compressor. It allows you to easily reduce the file size of PNG images without losing quality. Pngyu is very simple and easy to use, just upload your PNG image and it will optimize and compress it for you.
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WoSign
Security & Privacy
WoSign is a certificate authority that issues SSL certificates for websites to enable HTTPS and encrypt traffic. It is owned by Qihoo 360 and based in China. It had security controversies related to misissued certificates but remains one of the biggest CAs.
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