It's quite surprising to me you aren't using an SSL certificate or something similar on your website. User's credentials are a sensitive thing when using an exchange. Sometimes users have been using the same information on different sites although everyone should avoid such a thing. I had tried on several browsers, but all browsers have been showing your connection isn't secure. Probably new traders from the forum will not signup who knows about secure connection. Please fix it as soon as possible if you want to draw attentive attention from forum traders.