A/B testing
Websites using Optimizely
128 of the 9,931 top-ranked websites we scanned use Optimizely (1.3%). It is most often combined with HSTS, Google Tag Manager, Content Security Policy.
Top sites using Optimizely
| Rank | Domain | Title |
|---|---|---|
| #41 | bit.ly | Bitly | Short URLs, QR Codes, and More |
| #85 | zoom.us | One platform to connect | Zoom |
| #158 | gitlab.com | GitLab - Speed with control for agentic software engineering |
| #259 | mailchimp.com | Die E-Mail-Marketing-Plattform, jetzt mit SMS | Mailchimp |
| #339 | salesforce.com | Salesforce: Das führende CRM mit KI | Salesforce DE |
| #368 | eepurl.com | Die E-Mail-Marketing-Plattform, jetzt mit SMS | Mailchimp |
| #381 | typeform.com | Form Builder with AI Automation | Typeform |
| #405 | wpastra.com | Astra – Fast, Lightweight & Customizable WordPress Theme - Download Now! |
| #424 | elsevier.com | Elsevier | A global leader for advanced information and decision support in science and healthcare |
| #459 | zoom.com | One platform to connect | Zoom |
| #537 | clevelandclinic.org | Cleveland Clinic: Every Life Deserves World Class Care |
| #637 | zend.com | Enterprise PHP Development Platform | Expert PHP Support | Zend |
| #653 | parallels.com | Parallels | Run Windows on Mac, VDI, and Enterprise Virtualization Solutions |
| #702 | sky.com | Discover TV, Broadband & Mobile Phone Packages with Sky |
| #771 | asu.edu | ASU Homepage | Arizona State University |
| #916 | zapier.com | Zapier: Automate AI Workflows, Agents, and Apps |
| #955 | hootsuite.com | Social Media Marketing and Management Tool | Hootsuite |
| #991 | tableau.com | Business Intelligence and Analytics Software | Tableau |
| #1,010 | routledge.com | Routledge - Publisher of Professional & Academic Books |
| #1,110 | bitly.com | Bitly | Short URLs, QR Codes, and More |
| #1,119 | asana.com | Work & Project Management for Human-Agent Teams • Asana |
| #1,216 | ctvnews.ca | CTV News – Breaking News and Video, Canada News Today |
| #1,312 | foxbusiness.com | Fox Business | Business News & Stock Quotes - Saving & Investing |
| #1,383 | force.com | 404 | Salesforce |
| #1,398 | cvent.com | Cvent | Event Platform for In-person, Virtual, and Hybrid Events & Webinars |
| #1,435 | freshdesk.com | AI-Powered Customer Service Software | Freshdesk | Freshworks |
| #1,453 | aclu.org | American Civil Liberties Union | The ACLU dares to create a more perfect union — beyond one person, party, or side. Our mission is to realize this promise of the United States Constitution for all and expand the reach of its guarantees. |
| #1,486 | elastic.co | Elastic: The search database for AI | Search, AI agents, Observability, and Security | Elastic |
| #1,762 | channel4.com | Channel 4 | Stream & Watch Live TV |
| #1,902 | gitlab.io | GitLab - Speed with control for agentic software engineering |
| #2,014 | fourseasons.com | Four Seasons Hotels and Resorts | Luxury Hotels | Four Seasons |
| #2,167 | pingdom.com | Website Monitoring Service - Availability and Performance | Pingdom |
| #2,359 | smartsheet.com | The Execution Hub for Enterprise Work | Smartsheet |
| #2,379 | benzinga.com | Actionable Trading Ideas, Real-Time News, Financial Insight |
| #2,391 | dnb.com | Unternehmensdaten für sichere Entscheidungen | D&B |
| #2,454 | ul.com | UL Solutions |
| #2,552 | computerweekly.com | Computer Weekly | Information Technology (IT) News, UK IT Jobs, Industry News |
| #2,577 | asos.com | ASOS | Online Shopping for the Latest Clothes & Fashion |
| #2,597 | embedly.com | |
| #2,603 | acog.org | Home | ACOG | ACOG - College |
| #2,691 | aspca.org | ASPCA | American Society for the Prevention of Cruelty to Animals |
| #2,732 | foxsports.com | FOX Sports News, Scores, Schedules, Odds, Shows, Streams & Videos | FOX Sports |
| #2,761 | mattel.com | Mattel | Shop |
| #2,878 | edweek.org | Education Week - K-12 education news and information |
| #3,160 | sans.org | Cybersecurity Training in EMEA | SANS Institute |
| #3,251 | audubon.org | National Audubon Society |
| #3,290 | suse.com | Open Source Software Solutions for Enterprise Servers & Cloud | SUSE |
| #3,467 | oanda.com | Online Forex, Shares & Crypto CFD Trading Broker | OANDA |
| #3,504 | rhs.org.uk | RHS - UK's leading gardening charity / RHS |
| #3,516 | premierleague.com | Premier League Football News, Fixtures, Scores & Results |
| #3,568 | synthesia.io | Synthesia: #1 AI Video Platform for Business |
| #3,590 | mixpanel.com | Product Intelligence Platform for the AI Era | Mixpanel |
| #3,648 | bnnbloomberg.ca | BNN Bloomberg - Canada Business News, TSX Today, Oil and Energy Prices |
| #3,660 | optimizely.com | Optimizely - AI to create and optimize digital experiences |
| #3,694 | ucs.org | Union of Concerned Scientists |
| #3,702 | springernature.com | Springer Nature |
| #3,875 | sennheiser.com | Sennheiser — Headphones, Microphones, Wireless Systems |
| #4,046 | klm.com | KLM Royal Dutch Airlines - Book flights online - KLM US |
| #4,085 | ucsusa.org | Union of Concerned Scientists |
| #4,123 | uts.edu.au | UTS | University of Technology Sydney | #7 in Australia | Top 100 globally |
| #4,149 | hostelworld.com | Hostels Worldwide - Online Bookings, Ratings and Reviews |
| #4,232 | educause.edu | EDUCAUSE Homepage | EDUCAUSE |
| #4,272 | equifax.com | Equifax | Credit Bureau | Check Your Credit |
| #4,434 | authorize.net | Credit card payment processor, online payments systems and processing | Authorize.net |
| #4,459 | marksandspencer.com | M&S | Marks & Spencer | Fashion, Home, Beauty, Food & Gifts |
| #4,460 | distrokid.com | DistroKid: Music Distribution Services |
| #4,633 | arcg.is | Bitly | Short URLs, QR Codes, and More |
| #4,756 | ledger.com | Ledger Crypto Wallet - Security for DeFi & Web3 |
| #4,777 | klaviyo.com | Klaviyo: KI-gestütztes E-Mail-Marketing und SMS | B2C CRM |
| #4,892 | callofduty.com | Call of Duty® | Die wohl meistverkaufte Videospielserie |
| #4,897 | statefarm.com | State Farm® | An Insurance Company Valued For Over 100 Years |
| #4,901 | movember.com | Movember - Changing the Face of Men's Health | Movember |
| #4,920 | comptia.org | Information Technology (IT) Certifications & Tech Training | CompTIA Europe |
| #5,003 | inmotionhosting.com | Best Web Hosting, VPS, Dedicated Servers for Business 2026 | InMotion Hosting |
| #5,052 | sigmaaldrich.com | Merck | Germany |
| #5,102 | brennancenter.org | Brennan Center for Justice |
| #5,332 | brandwatch.com | Social Media Management & Consumer Intelligence | Brandwatch |
| #5,488 | kidney.org | National Kidney Foundation |
| #5,607 | smartasset.com | SmartAsset.com | Empowering You to Make Smart Financial Decisions |
| #5,612 | eventim.de | Eventim - Tickets für über 200.000 Events & Konzerte |
| #5,642 | wiz.io | Wiz: AI Cybersecurity for All Your Cloud and AI Applications |
| #5,722 | sympatico.ca | Noovo Moi | Lifestyle : mode, beauté, déco, santé, horoscope et vedettes |
| #5,874 | kiva.org | Make a loan, change a life | Kiva |
| #5,953 | ig.com | Trading mit dem Weltmarktführer | IG Deutschland |
| #5,995 | bnef.com | BloombergNEF |
| #6,025 | cisecurity.org | CIS Center for Internet Security |
| #6,152 | imperva.com | Cyber Security Leader | Imperva, Inc. |
| #6,199 | ageuk.org.uk | Age UK | Let's change how we age |
| #6,216 | bepress.com | Digital Commons | Digital showcase for scholarly work | Elsevier |
| #6,259 | tsn.ca | TSN - Canada's Sports Leader |
| #6,290 | kotlinlang.org | Kotlin Programming Language |
| #6,454 | pokerstars.com | Play Online Poker | PokerStars™ – Trusted for 20+ Years |
| #6,542 | burberry.com | |
| #6,557 | format.com | Format: Create Your Online Portfolio Website |
| #6,597 | nspcc.org.uk | NSPCC | The UK children's charity |
| #6,680 | fluke.com | Fluke Electrical Test Tools & Industrial Engineering Solutions |
| #6,736 | dnv.com | DNV.com - When trust matters - DNV |
| #6,998 | princetonreview.com | Test Prep Tutoring | Online Test Preparation | The Princeton Review |
| #7,015 | takeda.com | Takeda Pharmaceuticals: Global Homepage |
| #7,059 | peacocktv.com | Unavailable In Your Region |
| #7,113 | hugoboss.com | HUGO BOSS Online Shop: Herrenmode & Damenmode |
| #7,343 | bravotv.com | Bravo Official Site: Shows, Videos, News & Schedule |
| #7,345 | tommy.com | Tommy Hilfiger® Deutschland | Offizielle Website |
| #7,384 | pardot.com | B2B Marketing Automation Platform | Salesforce |
| #7,471 | infusionsoft.com | Small Business CRM & Automation | Keap |
| #7,492 | steinberg.net | |
| #7,622 | tricentis.com | AI-powered automated testing software tools | Tricentis |
| #7,918 | moveon.org | MoveOn: People-Powered Progress |
| #8,001 | virginmedia.com | Virgin Media | Cable Deals - See What You Can Do |
| #8,002 | canon-europe.com | Digital Cameras, Lenses, Camcorders & Printers - Canon Europe |
| #8,144 | elsevier.es | Elsevier | Un negocio de análisis de información |
| #8,145 | bentley.com | Bentley Systems | Infrastructure Engineering Software |
| #8,210 | thehartford.com | Business, Home and Car Insurance Quotes | The Hartford |
| #8,220 | leica-camera.com | Leica Camera – Offiziell | Deutschland |
| #8,364 | circleci.com | Autonomous validation for the AI era - CircleCI |
| #8,456 | digitalmarketinginstitute.com | Digital Marketing Certification Online | Digital Marketing Institute |
| #8,489 | cp24.com | CP24 – Toronto Breaking News, Live Updates, Weather and Traffic Today |
| #8,616 | perforce.com | Enterprise DevOps Tools | Perforce Software |
| #8,622 | woot.com | Woot |
| #8,657 | waldenu.edu | Accredited Online University | Walden University |
| #8,802 | fundable.com | Fundable | Startup Fundraising Platform |
| #8,928 | arborday.org | Arbor Day Foundation | Tree Planting Non-Profit |
| #8,932 | puppet.com | Perforce Puppet: Infrastructure Automation & Operations at Scale |
| #9,084 | coach.com | COACH – Offizielle Website | Moderne New Yorker Luxusmarke, seit 1941 |
| #9,175 | onepeloton.com | Peloton: Innovative exercise equipment and personalized workout plans |
| #9,511 | crcpress.com | Routledge - Publisher of Professional & Academic Books |
| #9,659 | ramseysolutions.com | A Proven Plan for Financial Success - Ramsey |
| #9,947 | carnival.com | Cruises | Carnival Cruise Deals: Caribbean, The Bahamas, Alaska, and Mexico |
Questions
How many top websites use Optimizely?
128 of the 9,931 top-ranked domains in our latest scan use Optimizely, about 1.3%.
What is Optimizely usually used with?
Sites using Optimizely most often also run HSTS, Google Tag Manager, Content Security Policy, Cloudflare, OneTrust.
How can I get a list of websites using Optimizely?
Use the Gridlode tech-stack API on any list of domains, or contact us for full technology lead lists by country and size.