Questions tagged [captcha]
The captcha tag has no usage guidance.
26
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What have I done to get flagged by all kinds of CAPTCHAs?
Googles ReCAPTCHA gives me 5 pages of tasks and fails me even though my answers are correct.
Cloudflare CAPTCHA fails me everytime by default.
I'm blocked from sites "protected" by ...
- 11
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1
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203
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How does slow fade in/out on reCAPTCHA deter bots?
The answer to this question says that reCAPTCHA fade in speed depends on how likely the systems thinks you are a human.
What mechanism makes this a useful deterrent for bots? It seems like the human ...
- 125
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179
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How can I send a message on a webpage, which requires reCAPTCHA, without being able to see a reCAPTCHA box
For places where reCAPTCHA service isn't available, e.g. reCAPTCHA box is not shown in mainland China, the problem could lead to
CAPTCHA
The reCAPTCHA was invalid. Go back and try it again.
Is there ...
- 17.3k
1
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1
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76
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Can you automate download of the audio file of Google Captchas?
As a follow-up to this question Can you make Google's reCAPTCHAs default to the sound version? - can you automate the download of the audio version of Google's captchas? The purpose is to play ...
- 814
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130
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Can you make Google's reCAPTCHAs default to the sound version?
Can you make Google's reCAPTCHAs default to the sound version? I am using Chrome and Firefox and I'm tired of having to manually select sound every time.
- 814
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552
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Sparring with Google: search has suddenly started requesting CAPTCHA constantly
War with Google
A couple of months ago, our office was suddenly thrown into turmoil when Google decided to go to war with us. Our identities were at stake: Google was sure that the office consisted ...
- 1,693
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212
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Issues with iptables & google recaptcha
I am running a cloud server with Ubuntu 20.04 on it, which is hosting a forum. This forum uses Google's reCaptcha to protect new registrations.
However, when I have my iptable rules in place, the ...
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139
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How can I script data entry on a website with a captcha? [closed]
I have several thousand records stored in a text file that I need to enter into a (JavaScript-based) web page, one record at a time. After I enter each record I need to parse the returned data and ...
- 111
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0
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127
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Using reCaptcha in qutebrowser
I'm trying to pass one of the "I'm not a robot" captchas, using an unmodified qutebrowser. I'm on version 1.5.2, and when I click the box it just loops and doesn't terminate.
I've tried clicking the ...
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Why is reCAPTCHA image fade in/out so slow?
So reCAPTCHA has one of those challenges where you have to click images and new ones fade in to replace them.
Why do the images fade out/in so slowly at times?
At times it's almost instant, sometimes ...
- 422
2
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1
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582
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Why internet traffic behind ISP is not subject to captcha like a VPN?
When I'm using the internet from my ISP 'directly' (I mean with no VPN or proxy), I can surf the web freely and almost never encounter a captcha but as soon as connecting to a VPN service, captchas ...
- 381
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2
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3k
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How does "I am not a robot" captcha work?
Is it a graphic, thus requiring bulky OCR which most bots lack (apparently)? Even so, it is a fixed graphic and would not really require OCR'ing just simple pattern matching against a library of one ...
- 37
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3
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42k
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How to change reCAPTCHA language on websites?
I want reCAPTCHA to be shown in English on all websites i visit like sign up pages and etc, but it is in Persian. Like this:
I tried Changing language in account settings to refresh it, clearing ...
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1k
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Captcha required using my static IP address
Everytime I open one of many websites, I have to pass the captcha challenge, I have a static IP address for my Sisco 1900 series fiber optics connection, and another static IP address for the ADSL ...
- 241
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Google upload/packet errors (maybe)
I have been having a strange problem sending certain kinds of data using Google's services. I can't sync using Google Drive nor can I use any captchas (I click the pictures it tells me to, but when I ...
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"Attention Required" message while browsing sites
I use Google Chrome browser. Recently I'm seeing the "attention required" page more frequently, as shown in the following image.
It's asking me to select some images and prove that I'm not a robot. ...
- 187
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3k
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How does Google know I have HOLA vpn installed when it's not running?
I installed Hola and my google search was redirected to a Google page stating " "Our systems have detected unusual traffic from your computer network" and made me enter a CAPTCHA to prove I'm not a ...
- 123
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77
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Captcha unification mechanism in different browsers?
How the captchas which are generated from one site could be valid at the same time but in 2 different browsers (e.g. IE and FF)? What makes this separation? How I can find these values or factors?
I ...
- 11
18
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3
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10k
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How does Google's new re-captcha work?
As far as I know, google has changed its re-captcha to a new one for google chrome browser. Google URL Shortener uses this kind of captcha.
This re-captcha verifies that "We are not robot" ...
- 3,010
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Batch - Using wget (or similar service) to pass a captcha request
I need to download this file...
h**p://www.vhannibal.net/download_setting.php?id=1
...using Wget from promt of dos of my Windows.
Currectly i used GnuWin32 wget 1.11.4.3287......... when i put this ...
- 15
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87
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Why does a site suddenly thinks my network is compromised?
I am on Debian 6 with all updates installed. I was trying to open a link from archtecturelab.net, when up pops this warning page (see below). What's going on? I don't have any windows machines on my ...
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22
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1k
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How does recaptcha know you aren't entering bogus translations of the pictures [closed]
From what I understand, Captchas are text that have been distorted by the application of filters, noise and other miscelaneous algorithms. Therefore, to find out whether the person's reading ability ...
- 361
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3
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176
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Can CAPTCHA be tweaked by bots?
Now a days text recognition within image is possible.
For example in Microsoft onenote you can search a text in image.
So is it a chance for bots to tweak the CAPTCHA ?
By using the same technique can ...
- 123
2
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1
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574
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Short cut key to put cursor in recaptcha box
Is there a shortcut key that will put the cursor back in the recaptcha box?
- 21
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1
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9k
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Proxy servers and captcha [closed]
Captcha isn't shown if I surf some websites through proxy servers. I haven't removed any scripts and objects.
- 1,745
3
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1
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1k
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Where does RECAPTCHA get those words from? [closed]
I’m asking just out of curiosity.
Today I encountered several really strange words while being captchaed by RECAPTCHA:
indelms
sumbetat
polietry
grevolfa
If these were reasonable words in any ...
- 1,921