Unfortunately if you have lost or damaged your phone, you don't have any signal but have access to the internet, your mobile has been stolen, or you just can't get to it for any particular reason, you are not able to check your text messages on the internet. Each message you send/draft/receive on your SIM card will only be shown where it has been saved - on the SIM. You can try your mobile account on your provider's website, but the information only goes as far as to tell you: A) how many texts you have sent, b) the time and date it was sent to, c) which number you sent them to, and d) the amount of money you owe, if you're on a contract that is. If this is all you need, then great! But if you want to check your actual messages, there is no real way of doing this. If your phone has been stolen and you're concerned about your privacy - for example people reading your texts - the best thing to do is to have your SIM card blocked (do this by contacting your network). Though you may be able to receive any texts sent to you after getting and activating a new SIM card, anything on your stolen/lost phone can't be recovered unless you manage to get your mobile back (for more information on all of this, click this link: www.how-to-text-message.com/check-text-messages-online.php). Don't forget that it's probably a good thing you can't read your messages online - if that were possible it would be even easier for other people to read your texts, which most people don't want!
