Websites using Flask 1.x
Flask is a Python micro web framework ideal for rapidly constructing web applications, offering minimalism, flexibility, and modularity.
356 live Flask 1.x sites, ready to export.
That's how many Flask 1.x websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.
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Every Flask 1.x website we detected in the United States.
Only sites where a personal, company-hosted email was found.
Sites with at least one personnel LinkedIn profile.
Start with the highest-traffic end of the dataset.
Limit results to Flask 1.x websites on .com domains.
Only sites where an organisation phone number was found.
Which Flask 1.x versions are most used?
We could read a version number on 98% of Flask 1.x sites. Of those, the most common is Flask 1.0.1, on 349 sites.
- Versions detected
- 1
- Sites with a version
- 349
Websites Using Flask 1.x
A sample of live Flask 1.x sites from our latest crawl, with the other technologies each one runs.
| Domain | Also runs | Crawl Date |
|---|---|---|
| purebackend.com | September 26, 2026 | |
| bolognahotel24.com | September 26, 2026 | |
| princetech.id | September 25, 2026 | |
| echo-organs.org | September 22, 2026 | |
| thebabyscorner.be | September 18, 2026 | |
| securimport.com | September 15, 2026 | |
| degenerazione.xyz | August 20, 2026 | |
| farmasuper.com.mx | August 19, 2026 | |
| centrohipicobenicarlo.com | August 19, 2026 | |
| visitcidadevelha.cv | August 19, 2026 |
How many websites use Flask 1.x?
We found Flask 1.x on 356 websites in our September 2026 crawl, across 56 countries.
Which countries use Flask 1.x the most?
By number of websites, the top countries are United States (17%, 61 sites), France (16%, 56 sites), Germany (7%, 26 sites), Belgium (5%, 19 sites) and Vietnam (4%, 13 sites). Together they account for 49% of the 356 Flask 1.x sites we track. 34% of the sites are in English, and .com is the most used domain ending, on 35% of them.
Where are Flask 1.x websites hosted?
The networks carrying the most Flask 1.x sites are OVH SAS (82 sites), Hetzner Online GmbH (31 sites) and Amazon.com, Inc. (21 sites).
What technologies are used with Flask 1.x?
Across the 356 Flask 1.x sites we track, the technologies most often found alongside it are Python (100%, 356 sites), PostgreSQL (87%, 310 sites), Less (87%, 308 sites), Odoo (87%, 308 sites) and Google Analytics (27%, 95 sites).
Breakdown of Flask 1.x websites
What else they run, plus their language, hosting network, domain extension and country.
| Technology | Sites |
|---|---|
Python | 356 |
PostgreSQL | 310 |
Less | 308 |
Odoo | 308 |
Google Analytics | 95 |
jQuery | 50 |
Bootstrap | 48 |
| HSTS | 46 |
HTTP/3 | 40 |
Google Tag Manager | 35 |
Nginx | 35 |
YouTube | 28 |
Ubuntu | 27 |
PHP | 26 |
Apache HTTP Server | 24 |
|
jQuery Migrate | 17 |
MySQL | 14 |
WordPress | 14 |
Cloudflare | 12 |
jsDelivr | 11 |
Font Awesome | 10 |
Popper | 10 |
Google Maps | 9 |
cdnjs | 9 |
|
jQuery CDN | 8 |
| Language | Sites |
|---|---|
| English | 121 |
| French | 50 |
| Spanish | 40 |
| German | 24 |
| Chinese | 19 |
| Dutch | 12 |
| Vietnamese | 12 |
| Italian | 10 |
| Latin | 9 |
| Portuguese | 9 |
| Somali | 7 |
| Catalan | 3 |
| Slovak | 3 |
| Thai | 3 |
| Arabic | 2 |
| Welsh | 2 |
| Danish | 2 |
| Hungarian | 2 |
| Lithuanian | 2 |
| Romanian | 2 |
| Tagalog | 2 |
| Turkish | 2 |
| Afrikaans | 1 |
| Esperanto | 1 |
| Estonian | 1 |
| ASN | Sites |
|---|---|
| OVH SAS | 82 |
| Hetzner Online GmbH | 31 |
| Amazon.com, Inc. | 21 |
| Contabo GmbH | 17 |
| DigitalOcean, LLC | 17 |
| IONOS SE | 14 |
| Akamai Connected Cloud | 12 |
| Google LLC | 11 |
| AFRIHOST SP (PTY) LTD | 10 |
| Microsoft Corporation | 9 |
| T-Mobile Austria GmbH | 9 |
| HIVELOCITY, Inc. | 8 |
| Contabo Inc. | 7 |
| Hangzhou Alibaba Advertising Co.,Ltd. | 6 |
| Hostinger International Limited | 4 |
| Vodafone GmbH | 4 |
| Alibaba (US) Technology Co., Ltd. | 3 |
| Avatel Telecom, SA | 3 |
| Contabo Asia Private Limited | 3 |
| ENTEGA Medianet GmbH | 3 |
| Shenzhen Tencent Computer Systems Company Limited | 3 |
| The Constant Company, LLC | 3 |
| netcup GmbH | 3 |
| AMAZON-02 | 2 |
| Cloudflare, Inc. | 2 |
| TLD | Sites |
|---|---|
| com | 123 |
| fr | 22 |
| org | 18 |
| online | 14 |
| be | 13 |
| de | 11 |
| nl | 10 |
| eu | 9 |
| net | 9 |
| vn | 9 |
| mx | 8 |
| at | 7 |
| es | 7 |
| tw | 7 |
| ch | 5 |
| cn | 5 |
| cv | 5 |
| it | 4 |
| ar | 3 |
| br | 3 |
| re | 3 |
| sk | 3 |
| app | 2 |
| ca | 2 |
| cl | 2 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 61 |
| 🇫🇷 France | 56 |
| 🇩🇪 Germany | 26 |
| 🇧🇪 Belgium | 19 |
| 🇻🇳 Vietnam | 13 |
| 🇨🇳 China | 12 |
| 🇳🇱 Netherlands | 12 |
| 🇪🇸 Spain | 11 |
| 🇦🇹 Austria | 10 |
| 🇿🇦 South Africa | 10 |
| 🇲🇽 Mexico | 9 |
| 🇸🇬 Singapore | 9 |
| 🇨🇦 Canada | 8 |
| 🇹🇼 Taiwan | 8 |
| 🇨🇭 Switzerland | 6 |
| 🇨🇻 Cape Verde | 5 |
| 🇮🇹 Italy | 5 |
| 🇷🇺 Russia | 4 |
| 🇸🇦 Saudi Arabia | 4 |
| 🇸🇰 Slovakia | 4 |
| Unknown | 4 |
| 🇦🇷 Argentina | 3 |
| 🇧🇷 Brazil | 3 |
| 🇬🇧 United Kingdom | 3 |
| 🇮🇩 Indonesia | 3 |
FAQ
Answers drawn from our latest crawl of Flask 1.x websites. Anything else, email us and we will look it up.
Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.