Is it really useful ReCaptcha?

[Qwitty]

I mean, most of the time once a day is renewed, or every time you change the IP.
Because, as you may know, the first time it is used you only have to click and the green check mark appears, but when you use it often, you have to choose the diferent images.
Is not this a weakness, or could be an exploit?

[dragovich5d]

Captchas are just there to provide protection against bots. Bots can't be used if they can't actually get past the captchas.

[wintermeasures]

Captchas are very Good Services offered by many Companies like Google, Solvemedia etc.
And Captcha prevent our Website From Bots and It is Very Useful For Faucet owners because they have to prevent their Faucet From Bots.....

[HCP]

I mean, most of the time once a day is renewed, or every time you change the IP.
Because, as you may know, the first time it is used you only have to click and the green check mark appears, but when you use it often, you have to choose the diferent images.
Is not this a weakness, or could be an exploit?

It isn't necessarily the first time you use it during the day... I've had to enter a couple of ReCaptcha's this morning after being offline overnight, and had to click images... however, about 15mins ago, I was on a site trying to sign up and had to do a ReCaptcha and it just accepted the click and gave me a green tick.

I suspect it is some random combination of time, IP, time since last captcha etc that they use to decide if you get the "free pass"...

Otherwise, as you say, it would be exploitable simply by rotating through different IPs using proxies (or exploiting your ISP if they assign a new IP every time you reconnect to the internet) which would make ReCaptcha a bit useless...

As far as Captcha's go in general... I find them very annoying... especially those SolveMedia ones... sometimes it just looks like crazy scribbles made by a 3yr old with crayons and you just can't read the letters... I've actually given up on a couple of websites because their Captchas were simply unreadable (I clicked the change captcha button like 30 times) and I couldn't sign up an account  

I understand why sites use them tho... but they need to at least make them human readable!

[jacee]

It's to get rid of bots so the site will not be exploited. It also is necessary so the site will not clogged with too much traffic. I don't see why solvigthe captcha every now and then coul be a bother.

[deadsilent]

Well.thats normal. They use that to avoid bots. Other than that here are benefits of captcha

Blocking Spam Emails | Don’t you hate it when you go to open a seemingly important email only to find that it is spam? Yeah… me too. If you want or need help help blocking those pesky emails, then using a CAPTCHA submission form at the end of your contact page/form can help to lower the number of junk emails that wind up in your Inbox or Spam folder
Blocking Spam Comments | Perhaps the most irritating thing a website administrator has to deal with is spam comments. Sure, plugins like Anti-Spam Bee or Akismet can capture those bot induced spam comments and send them to the spam folder in your WP dashboard, but they can’t actually stop such comments from being submitted. Using a CAPTCHA form on your comments may be slightly tedious for your commenters’, but using it can eliminate a large chunk of those spam comments from even happening in the first place. This means that you can spend more time on the good bits of running a WordPress site, and less on comment moderation — we all hate that part.

[ImHash]

I love it when only ticks and accept you but when you need to put street numbers though not very much, the fast ones are good if you are on yobicodes and wanting to activate them faster than others imao.

[mobnepal]

Actually when you use same IP/browser for multiple claims in a website than recaptcha will show images after 2-3 of your claims this is to prevent bots because bots can't be programmed to click on right images. But i have heard that recaptcha is being bypassed by some programmers to drain out several faucets. I think funcaptcha provide better solution.

[TastyChillySauce00]

it's useful for some website owner to prevent from bot attackers,but unfortunately this captcha could be bypassed by using captcha solver service (such as deathbycaptcha,2captcha,or anything similiar)
so it's useful but not that useful,just a small addition for security,atleast it can prevent noob botters from botting

[Decoded]

Actually when you use same IP/browser for multiple claims in a website than recaptcha will show images after 2-3 of your claims this is to prevent bots because bots can't be programmed to click on right images. But i have heard that recaptcha is being bypassed by some programmers to drain out several faucets. I think funcaptcha provide better solution.

IIRC a ReCaptcha owner can set the anti-bot aggressiveness. People usually set it to passive, but there's an option to make it prompt you to compete the captcha every time.

[jhenfelipe]

I mean, most of the time once a day is renewed, or every time you change the IP.
Because, as you may know, the first time it is used you only have to click and the green check mark appears, but when you use it often, you have to choose the diferent images.
Is not this a weakness, or could be an exploit?

I think it's not a weakness. reCAPTCHA V2 is really working like that, sometimes you'll see a green checkmark after click while sometimes you need to prove to them that you're not a robot by solving the puzzle (I don't know what's the basis though). What I know is you're lucky if you'll always passed the robot test without solving a challenge. 

[X-ray]

Actually when you use same IP/browser for multiple claims in a website than recaptcha will show images after 2-3 of your claims this is to prevent bots because bots can't be programmed to click on right images. But i have heard that recaptcha is being bypassed by some programmers to drain out several faucets. I think funcaptcha provide better solution.

IIRC a ReCaptcha owner can set the anti-bot aggressiveness. People usually set it to passive, but there's an option to make it prompt you to compete the captcha every time.

that's true,the anti-bot aggressiveness will require the visitor to solve the captcha atleast 3-5x correctly,and it's sure still can be bypassed by some of programmers,and there's so many services in the service section if i'm not mistaken that offering a job to be captcha typer and it's function is to bypass this

[Herbert2020]

it may not be the perfect thing but it surely prevents a lot of spam from bots lurking around everywhere. besides the fact that you get the green check mark without solving anything may be because they are storing some cookies on your computer that tells them the last time you checked in and how successful your attempt was.

[pvaspecialist]

Yes it is useful recaptcha.recaptcha protect your site from unusual activity.some people use bots for spam if your website have recaptcha verified bots can not pass recaptcha test.I think recaptcha is a simple step to protect your site from spammer.

[martinacar]

Recaptcha is a good way to hold spam, over 90% in my experience.
But's it is not enough to hold 100%, in fact no captcha can do it. Every captcha can be broken by a pot.
Adding recaptcha and a custom questions is the best way to hold of spammers.

[Supercrypt]

Captchas are good protection against spam and bots. However, it's not really a 100% protection as there are really good programmers that have already made bots against captchas. I know a few people who've already done it and have seen their work for a price.

[Indianacoin]

According to me if you want to create a 99.5% exploit-free faucet site, then you can implement both ReCaptcha and Honeypot at the same time just so that a faucet claimer will have to pass both the captchas at the same time. And I think there are very few exploits available for Honeypot whic eventually do not work after they update their security modules.

I know its tedious but you can try it out. Good luck.

Recaptcha is a good way to hold spam, over 90% in my experience.
But's it is not enough to hold 100%, in fact no captcha can do it. Every captcha can be broken by a pot.
Adding recaptcha and a custom questions is the best way to hold of spammers.

True, Google's ReCaptcha is constantly updating their captchas so that a bot doesn't recognize the images from a few visits.
This is why majority users prefer ReCaptcha.

[bitlancr]

According to me if you want to create a 99.5% exploit-free faucet site, then you can implement both ReCaptcha and Honeypot at the same time just so that a faucet claimer will have to pass both the captchas at the same time. And I think there are very few exploits available for Honeypot whic eventually do not work after they update their security modules.

I know its tedious but you can try it out. Good luck.

Recaptcha is a good way to hold spam, over 90% in my experience.
But's it is not enough to hold 100%, in fact no captcha can do it. Every captcha can be broken by a pot.
Adding recaptcha and a custom questions is the best way to hold of spammers.

True, Google's ReCaptcha is constantly updating their captchas so that a bot doesn't recognize the images from a few visits.
This is why majority users prefer ReCaptcha.

Recaptcha on TOR is a nightmare so be prepared to lose some tor users if you use it.
But compared to other captcha's the free recaptcha does the trick to hold of bots.

[Qwitty]

Thanks you all for answering!!

I suspect it is some random combination of time, IP, time since last captcha etc that they use to decide if you get the "free pass"...

Otherwise, as you say, it would be exploitable simply by rotating through different IPs using proxies (or exploiting your ISP if they assign a new IP every time you reconnect to the internet) which would make ReCaptcha a bit useless...

Yes, that's what I meant.

As far as Captcha's go in general... I find them very annoying... especially those SolveMedia ones... sometimes it just looks like crazy scribbles made by a 3yr old with crayons and you just can't read the letters... I've actually given up on a couple of websites because their Captchas were simply unreadable (I clicked the change captcha button like 30 times) and I couldn't sign up an account  

I understand why sites use them tho... but they need to at least make them human readable!

Yes veeery annoying, like these...

[n691309]

I mean, most of the time once a day is renewed, or every time you change the IP.
Because, as you may know, the first time it is used you only have to click and the green check mark appears, but when you use it often, you have to choose the diferent images.
Is not this a weakness, or could be an exploit?

It happens that 3-4 times a day you don't have to solve the captcha because it's known that you haven't tried to solve any captcha recently, but if you surf often faucets then you have to solve the captchas because you are requiring to often and the system thinks that you are a bot. This is normal so you have not to worry much about.