Search references for CAPTCHA. Phrases containing CAPTCHA
See searches and references containing CAPTCHA!CAPTCHA
Test to determine whether a user is human
A CAPTCHA (/ˈkæp.tʃə/ KAP-chə) is a type of challenge–response Turing test used in computing to determine whether the user is human in order to deter
CAPTCHA
CAPTCHA implementation owned by Google
reCAPTCHA Inc. is a corporation owned by its parent company Google, which produces the CAPTCHA system. It serves to web hosts to distinguish between human
ReCAPTCHA
Guatemalan-American entrepreneur and software developer
entrepreneur and software developer. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo
Luis_von_Ahn
Web archive
January 2026, it emerged that archive.today had silently modified its CAPTCHA page to send repeated requests to Gyrovague, thereby causing visitors to
Archive.today
Test of a machine's ability to imitate human intelligence
into a field, which bots struggle to do. The reCaptcha is a CAPTCHA system owned by Google. The reCaptcha v1 and v2 both used to operate by asking the user
Turing_test
Video-sharing platform
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
YouTube
Social network exclusively for AI agents
to verify that a poster is an AI agent, but in February 2026, a reverse CAPTCHA system was introduced to filter out humans. The platform gained viral attention
Moltbook
American musician (born 1969)
custom model created for him. "ShieldSquare Captcha". Songfacts.com. Retrieved 2021-04-08. "ShieldSquare Captcha". Songfacts.com. Retrieved 2021-04-08. "Chan
Chan_Kinchla
Chatbot developed by Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Gemini
Web browser developed by Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Chrome
American multinational technology company
Charleston Road Registry Endoxon FeedBurner ImageAmerica Kaltix Nest Labs reCAPTCHA X Development YouTube ZipDash ASN 15169 Website about.google Footnotes /
Spambot for forums and comment sections
Hotmail and Gmail captchas due to a change in captcha format. Users of XRumer could only defeat such captchas utilizing external human captcha services. Webmasters
XRumer
Artificial intelligence company
consideration. On October 22, 2013, beating CAPTCHA, Vicarious announced its model was reliably able to solve modern CAPTCHAs, with character recognition rates
Vicarious_(company)
Software that runs automated tasks on the Internet
anti-bot technique is CAPTCHA. Examples of providers include Recaptcha, Minteye, Solve Media and NuCaptcha. However, captchas are not foolproof in preventing
Internet_bot
Venezuelan computer scientist
number generator, the Blum–Goldwasser cryptosystem, and more recently CAPTCHAs. Blum is also known as the advisor of many prominent researchers. Among
Manuel_Blum
English computer scientist (1912–1954)
A reversed form of the Turing test is widely used on the Internet; the CAPTCHA test is intended to determine whether the user is a human or a computer
Alan_Turing
2023 short film
woman who plunges into a strange new reality after she fails a series of CAPTCHA tests. An international co-production between Belgium and the Netherlands
I'm_Not_a_Robot_(film)
Method of extracting data from websites
real person accessing the site, like a CAPTCHA. Bots are sometimes coded to explicitly break specific CAPTCHA patterns or may employ third-party services
Web_scraping
Web mapping service
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Maps
Computer recognition of visual text
control a computer (pen computing) Defeating or testing the robustness of CAPTCHA anti-bot systems, though these are specifically designed to prevent OCR
Optical_character_recognition
Technology for the detection of human bodies
security authentication. These include software technologies such CAPTCHA and reCAPTCHA, as well as hardware technologies such as: Radar technology Image
Human_presence_detection
Free and open-source Internet forum package written in PHP
and a plugin-based CAPTCHA system, including built-in support for reCAPTCHA among others. The modularization of phpBB's CAPTCHA also provided an API
PhpBB
Computer software
over several connections Can automatically solve some CAPTCHAs with its own OCR module (JAntiCaptcha) Automatic extractor (including password list search)
JDownloader
Topics referred to by the same term
in the fiction movie Tenet, a device that inverts entropy Turnstile, a CAPTCHA product by Cloudflare Turn Style, retail store Turnstyle (band), a band
Turnstile_(disambiguation)
French software developer (born 1978)
includes authoring a CAPTCHA decoding framework called PWNtcha. PWNtcha was the first CAPTCHA decoder framework to defeat multiple CAPTCHAs and was referred
Sam_Hocevar
Open-source online chess platform
impaired people play chess on a website. It also has a chess puzzle-based CAPTCHA system. For registered players, Lichess employs a Glicko-2 rating system
Lichess
Web search engine (1995–2013)
redirected to Yahoo Search. AltaVista is credited with implementing the first CAPTCHA to prevent fraudulent account registrations and internet bots from automatically
AltaVista
Computer spam program (malware)
forms to submit fake content. These often use OCR technology to bypass CAPTCHAs. Some spam messages are targeted towards readers and may involve techniques
Spambot
American electronic music ensemble
Egg Records / Captcha Records) – CD / LP 2011 – Roulé (split with Mahjongg (band)) (Captcha Records) – LP 2012 – Founding Fathers (Captcha Records) – LP
Chandeliers_(band)
Israeli mathematician
perturbations of the transition matrix. Solan was one of the inventors of CAPTCHA in 1997, along with Eran Reshef and Gili Raanan. - Borel Games. Chapman
Eilon_Solan
Microsoft webmail service
February 2, 2025. Danchev, Dancho (July 3, 2008). "Gmail, Yahoo and Hotmail's CAPTCHA broken by spammers". ZDNet. CBS Interactive. Archived from the original
Outlook.com
Malware for Microsoft Windows
downloads, and compromised websites. It is frequently associated with fake CAPTCHA pages, which prompt the user to paste a command into the run box. It steals
Lumma_Stealer
Email service provided by Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Gmail
Anonymous imageboard website
he had done the same.[citation needed] In 2010, 4chan had implemented reCAPTCHA in an effort to thwart spam arising from JavaScript worms. By November
4chan
Web video game
as keystroke replays and a captcha anticheat that requires users who achieve over 100 wpm in a race to complete a CAPTCHA. When completed successfully
TypeRacer
2013 single by Justin Bieber featuring Drake
Here (2012, CDr)". Discogs.com. Retrieved 1 January 2022. "ShieldSquare Captcha". Songfacts.com. Retrieved 1 January 2022. "Justin Bieber Joins Drake At
Right Here (Justin Bieber song)
Right_Here_(Justin_Bieber_song)
Ukrainian-American software engineer
Gausebeck-Levchin test, one of the first commercial implementations of a CAPTCHA challenge response human test. He founded or co-founded the companies Slide
Max_Levchin
Trump's foreign policy (using audio clips); Tonight Show Mimi's Munchies (Captchas); Tonight Show Talking for Each Other (Kristen Wiig); Ashton Kutcher demonstrates
List of The Tonight Show Starring Jimmy Fallon episodes (2026)
List_of_The_Tonight_Show_Starring_Jimmy_Fallon_episodes_(2026)
Methods used to prevent access by bots
human. A widely adopted method for bot defense on websites is tests called CAPTCHAs. They are commonly deployed at critical points of interaction, such as
Bot_prevention
2008-09-17. Archived from the original on 2011-09-27. Retrieved 2012-03-31. no CAPTCHA anyone can download photos uploaded by Premium members Fotki limits the
List of image-sharing websites
List_of_image-sharing_websites
Metasearch engine
used by searx.me from queries that result in a google (unexpected crash: CAPTCHA required) error. In response, some instances have been modified to silently
Searx
Physical archive
Captcha zine by Anonymous Press (Karolis Kosas) (2013), included in Library of the Printed Web.
Library_of_the_Printed_Web
Resistance to a malicious network attack
this goal, however, CAPTCHAs allow one human to obtain multiple accounts or shares of a resource simply by solving multiple CAPTCHAs in succession, and
Proof_of_personhood
Email service developed by Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Inbox_by_Gmail
One-time password used in banking
impossible) for an attacker to forge the CAPTCHA. This variant of the iTAN is method used by some German banks adds a CAPTCHA to reduce the risk of man-in-the-middle
Transaction authentication number
Transaction_authentication_number
American technology company
away from using reCAPTCHA in favor of hCaptcha. In September 2022, Cloudflare began to test Turnstile – an alternative to CAPTCHA. The product, instead
Cloudflare
Process of harvesting data from search engine results pages
of defense is a captcha page where the user is prompted to verify they are a real person and not a bot or tool. Solving the captcha will create a cookie
Search_engine_scraping
American international technology company
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Alphabet_Inc.
Online video editing application
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Vids
American singer-songwriter (1967–1995)
(2021). Shannon (First ed.). Greg Prato. ISBN 979-8452812739. "ShieldSquare Captcha". www.songfacts.com. Retrieved December 16, 2020. "'The Used': Bert McCracken
Shannon_Hoon
Test of artificial intelligence
procedures, called CAPTCHAs, are used in some anti-spam systems to prevent automated bulk use of communications systems. The use of captchas is controversial
Reverse_Turing_test
Software to run a collaborative wiki compared
database), URL-approval (option), encrypt e-mails (addon), nofollow, Captcha (addon), spam filters (recipe) Shulman, Eric. "AttachFilePluginInfo". TiddlyTools
Comparison_of_wiki_software
Search engine from Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Search
Function computed by two parties that emulates a random oracle
derivation, password-based key agreement, password-hardening, untraceable CAPTCHAs, password management, homomorphic key management, and private set intersection
Oblivious pseudorandom function
Oblivious_pseudorandom_function
American wrestler (born 1959)
Retrieved October 12, 2020. Fuentes, Jon (September 29, 2016). "ShieldSquare Captcha". validate.perfdrive.com. Retrieved October 12, 2020. "The Forgotten Steroid
Kevin_Nash
Canadian businessman and billionaire (born 1943)
Newspapers.com. "Radware Bot Manager Captcha". numerique.banq.qc.ca. Retrieved 2026-02-27. "Radware Bot Manager Captcha". numerique.banq.qc.ca. Retrieved
Robert Miller (Canadian businessman)
Robert_Miller_(Canadian_businessman)
Research division of Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Research
Government agency of Ukraine
"ShieldSquare Captcha". www.kmu.gov.ua. Retrieved 24 March 2023. "ShieldSquare Captcha". www.kmu.gov.ua. Retrieved 24 March 2023. "ShieldSquare Captcha". www
National Health Service of Ukraine
National_Health_Service_of_Ukraine
Topics referred to by the same term
short track speed skater Luis von Ahn, (born 1978) Guatemalan creator of CAPTCHA and co-founder of Duolingo Ahn, Luxembourg, a town All Headline News, a
Ahn
List of Android operating system versions
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Android_version_history
Japanese psychedelic band
Clouds" was pressed onto 12" LP by both Cardinal Fuzz Records (UK) and Captcha Records (US) in June 2014. The band continued to tour throughout 2014 and
Kikagaku_Moyo
Russian social media and social networking service
consent. The targets were the Runet Prize voting page in 2008 and the CAPTCHA-solving service antigate.com in 2012. It was done by inserting an iframe
VK_(service)
URI scheme for linking email addresses
harvesting robots. Other techniques, like walling the address behind a CAPTCHA or similar "humanity check", provide security on par with that available
Mailto
American technology executive
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Rick_Osterloh
Catholic university in Notre Dame, Indiana, U.S.
The West Wing". Empire Online. Retrieved June 14, 2022. "ShieldSquare Captcha". www.songfacts.com. Retrieved June 14, 2022. "OK Go offer an anthem for
University_of_Notre_Dame
Advertisements on Internet forums
submit spam links to. These spambots often use OCR technology to bypass CAPTCHAs present. Some messages are targeted towards readers and can involve techniques
Forum_spam
1974 single by Elton John
And The Jets (1974)". New Music United. 29 January 2016. "ShieldSquare Captcha". songfacts.com. Retrieved 12 November 2020. Bliss, Karen (21 January 2016)
Bennie_and_the_Jets
Version control system by Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Piper_(source_control_system)
Multilingual neural machine translation service
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Translate
Neurodegenerative disease caused by head injury
2026. "Checking your browser - reCAPTCHA". pmc.ncbi.nlm.nih.gov. Retrieved 11 May 2026. "Checking your browser - reCAPTCHA". pmc.ncbi.nlm.nih.gov. Retrieved
Chronic traumatic encephalopathy
Chronic_traumatic_encephalopathy
Class of attacks tracking web browser history
particular elements which can often be disguised as buttons, browser games, CAPTCHAs, and other such elements. Despite being partially mitigated in 2010, history
History_sniffing
Topics referred to by the same term
verification, verifying that an account is owned by a real person or organization CAPTCHA, device to verify that a user of a website is human, to prevent automated
Verification
Application development platform
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Actions_on_Google
Phone call delivering pre-recorded message
Guard for landlines in 2007. It improves on previous models by including a CAPTCHA style challenge-response test. Based on a database developed from customer
Robocall
Digital rights management technology
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Widevine
Concept in artificial intelligence
Faking". Unite.AI. Retrieved 2025-01-15. "Uh Oh, OpenAI's GPT-4 Just Fooled a Human Into Solving a CAPTCHA". Futurism. 15 March 2023. Retrieved 2024-01-23.
Recursive_self-improvement
American computer scientist (born 1973)
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Sergey_Brin
American computer scientist
from masquerading as human and access web sites, often referred to as CAPTCHA. In 2000, Broder, then at AltaVista, together with colleagues from IBM
Andrei_Broder
Topics referred to by the same term
particular attribute or property such as personally identifiable information. CAPTCHA - a computing scheme used to identity an entity as a human being and not
Confirmation_code
American Cryptographer
Wolters, Benedikt (April 1, 2022). "The end of the road for Cloudflare CAPTCHAs". Cloudflare Blog. Retrieved 2024-12-06. Challenges are selected based
Ari_Juels
Type of authentication protocol
Challenge–response protocols are also used in non-cryptographic applications. CAPTCHAs, for example, are meant to allow websites and applications to determine
Challenge–response authentication
Challenge–response_authentication
Cloud-based presentation software
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Slides
1989 studio album by Chris Rea
(5 March 1991). "Sunny side up?". Q Magazine. 55: 38–40. "ShieldSquare Captcha". Songfacts.com. Henry Yates (1 December 2015). "An Interview With The
The_Road_to_Hell
Open source user interface (UI) component library for JavaServer Faces
Release Release date Highlights PrimeFaces 0.8.1 2009-02-23 Introduced Captcha and resizable components and AJAX tab loading features were also added
PrimeFaces
Season of American reality television series
winner and Kaycee was the loser. Safety Competition – Part 2 ("HouseGuest CAPTCHA"): The HouseGuests must collect block letters from the pit below their
Big Brother 20 (American season)
Big_Brother_20_(American_season)
Vaccine against SARS-CoV-2
countermeasures to limit automated scraping, including rate limits and CAPTCHA systems. As vaccine supply increased and eligibility expanded nationwide
COVID-19_vaccine
American rock musician
Songwriter. January 14, 2022. "Catch Mark Zubia Backed by the Black Moods This Weekend". Phoenixnewtimes. Phoenic New Times. "ShieldSquare Captcha".
Jesse_Valenzuela
2014 January 21 Security Snapchat introduces Snap-tchas (a wordplay on CAPTCHAs) to deter spam and improve security, but hackers find workarounds within
Timeline_of_Snapchat
2014 video game
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Dinosaur_Game
Musical artist
was released by Logan Hardware and their sophomore LP was released on Captcha Records in February 2013. Past Crimewave duos include Solar Fox, Goldblood
Plastic_Crimewave
Cryptanalytic method for unauthorized users to access data
successive attempts, increasing the answer's complexity (e.g., requiring a CAPTCHA answer or employing multi-factor authentication), and/or locking accounts
Brute-force_attack
Input fields on a Web page
the site's HTML. HTML forms were first implemented by the Viola browser. CAPTCHA Postback XForms HTML "HTML/Elements/label". w3.org wiki. 19 May 2023. Satrom
HTML_form
Scripting platform developed by Google
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Google_Apps_Script
Israeli research university in Haifa
– inventor and author Moti Bodek (b. 1961) – architect Andrei Broder – captcha developer, Vice President of Yahoo, formerly vice president of AltaVista
Technion – Israel Institute of Technology
Technion_–_Israel_Institute_of_Technology
Semi-autonomous region of Tanzania
Machine "Friendly Captcha". i.fmlist.org. Archived from the original on 3 March 2016. Retrieved 1 February 2026. "Friendly Captcha". i.fmlist.org. Archived
Zanzibar
Belgian-French construction group
a member of the United Nations Global Compact programme. "ShieldSquare Captcha". globaldata.com. Retrieved 2022-06-03. ""Smart Buildings" : BESIX Group
Besix
Search engine link-analysis algorithm
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Hilltop_algorithm
Bangalore wildlife filmmaker
employees globally each year. He and his team were the first to introduce Captcha tech to the world. At the end of 2004 he quit his job in order to pursue
Kalyan_Varma
1964 single by Elvis Presley
"Homepage". Charliedaniels.com. Retrieved 22 April 2021. "ShieldSquare Captcha". Songfacts.com. Retrieved 22 April 2021. Jorgensen, Ernst (1998). Elvis
It_Hurts_Me
Open-source web browser project
Eclipse Polymer Programmable Search Engine Project Shield Public DNS reCAPTCHA RenderScript SafetyNet SageTV Schema.org Search Console Shell Sitemaps
Chromium_(web_browser)
CAPTCHA
CAPTCHA
CAPTCHA
CAPTCHA
Girl/Female
Hindu, Indian
A Poem which was Written by Ravindra Nath Tagore
Girl/Female
Hindu, Indian, Tamil
Daughter of a Flower
Boy/Male
African, Arabic, Indian
Endless Growth; Increasing Power; Lion; Light
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Tamil, Telugu
Pleading; Pray for Something
Girl/Female
Tamil
Vertika | வரà¯à®¤à®¿à®•ா
Lamp
Girl/Female
Indian
Happy
Girl/Female
Tamil
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi
Lord Shiva; Lord Vishnu
Male
Romanian
Pet form of Romanian Nicolæ, NICUSOR means "victor of the people."
Surname or Lastname
English, Dutch, or German
English, Dutch, or German : patronymic from Carl.
CAPTCHA
CAPTCHA
CAPTCHA
CAPTCHA
CAPTCHA