Websites Powered by ZK
638 websites tracked using ZK (Web frameworks) · zkoss.org
ZK is a web application framework used to build the site's backend. Its official site is zkoss.org. PoweredBy tracks the websites that use ZK across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the web frameworks ecosystem.
Usage trend
Core Web Vitals
Median site among 483 ZK sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
161
Brazil
111
Germany
107
Italy
104
Spain
92
Indonesia
90
United Kingdom
88
France
86
Sites using ZK by audience country, Chrome UX Report.
Top sites by authority
The share of the web's most authoritative domains, by Open Page Rank tier, seen running ZK in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using ZK
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 201 | ptp.com.my | 3.41/10 | - | - | Sep 2021 |
| 202 | queretaro.gob.mx | 5.64/10 | 110 | 67 | Dec 2020 |
| 203 | quimicasoft.com | 0.10/10 | - | - | Oct 2020 |
| 204 | ragus.at | 0.47/10 | - | - | Aug 2025 |
| 205 | ranking-spy.com | 2.71/10 | - | - | May 2018 |
| 206 | ravnaqbank.uz | 3.34/10 | - | - | Aug 2022 |
| 207 | reparanet.es | 2.17/10 | - | - | Jan 2019 |
| 208 | riodeportes.net | - | - | - | Oct 2024 |
| 209 | royalcashflow.hu | 0.60/10 | - | - | Jan 2019 |
| 210 | rtkplus.com | - | - | - | Nov 2022 |
| 211 | sancarlos.gob.ar | 1.64/10 | - | - | Nov 2023 |
| 212 | saneago.com.br | 3.95/10 | - | - | Feb 2020 |
| 213 | sayges.online | 0.32/10 | - | - | Oct 2023 |
| 214 | siad.mg.gov.br | 1.79/10 | - | - | Jan 2021 |
| 215 | sigaaguas.org.br | 1.67/10 | - | - | Dec 2024 |
| 216 | sisap4.mg.gov.br | - | - | - | Aug 2022 |
| 217 | slpa.lk | 5.01/10 | 970 | 474 | Mar 2025 |
| 218 | smou.org.sg | 1.96/10 | - | - | Dec 2020 |
| 219 | snowpro.com | 3.65/10 | - | - | Dec 2020 |
| 220 | softdart.it | 1.62/10 | - | - | Jan 2026 |
| 221 | sorefsis.gr | 1.17/10 | - | - | Jan 2021 |
| 222 | summar.com | 1.44/10 | - | - | Feb 2024 |
| 223 | tarcza.malopolska.pl | 1.66/10 | - | - | Jul 2020 |
| 224 | tcema.tc.br | 3.24/10 | - | - | Feb 2026 |
| 225 | tdf.gob.ar | 3.13/10 | - | - | Aug 2022 |
| 226 | teleconsul.it | 3.14/10 | - | - | Jan 2024 |
| 227 | terrafirma-software.com | 0.38/10 | - | - | Aug 2022 |
| 228 | tierradelfuego.gob.ar | 5.73/10 | 110 | 194 | Aug 2025 |
| 229 | tnswp.com | 1.65/10 | - | - | Oct 2022 |
| 230 | tramitesdgrsalta.gob.ar | - | - | - | Feb 2026 |
| 231 | trijuntos.com.br | - | - | - | Apr 2026 |
| 232 | uajms.edu.bo | 3.51/10 | - | - | Sep 2020 |
| 233 | uif.gob.sv | 1.78/10 | - | - | Aug 2022 |
| 234 | uniagroup.com | 2.53/10 | - | - | Jul 2024 |
| 235 | unilurio.ac.mz | 3.31/10 | - | - | May 2021 |
| 236 | unizambeze.ac.mz | 3.13/10 | - | - | Aug 2022 |
| 237 | uralairlines.ru | 6.03/10 | 620 | 384 | Aug 2018 |
| 238 | ushuaia.gob.ar | 3.49/10 | - | - | Dec 2023 |
| 239 | uzairways.com | 5.99/10 | 8,900 | 7,430 | Dec 2020 |
| 240 | vouavaliar.com.br | - | - | - | Feb 2020 |
| 241 | vpdt.com.vn | 3.13/10 | - | - | Jan 2019 |
| 242 | vseveda.org | 1.70/10 | - | - | Jan 2019 |
| 243 | vtd.lt | 4.37/10 | - | - | Aug 2018 |
| 244 | yakutia.aero | 5.11/10 | 89 | 13 | Sep 2021 |
| 245 | zeufix.de | 0.57/10 | - | - | Sep 2020 |
| 246 | admit.work | 0.25/10 | - | - | Sep 2023 |
| 247 | agriculture.gov.gr | 1.95/10 | - | - | May 2026 |
| 248 | ajcalp.es | 1.70/10 | - | - | Aug 2022 |
| 249 | azuriandte.com | 0.10/10 | - | - | May 2025 |
| 250 | booksroom.it | 1.62/10 | - | - | Jun 2020 |
| 251 | conperuhouston.net | 0.25/10 | - | - | Dec 2024 |
| 252 | ets-cs.gov.hk | 0.81/10 | - | - | Feb 2026 |
| 253 | formulariosmediallbrasil.com | - | - | - | May 2026 |
| 254 | lisdatacenter.org | 5.90/10 | 1,500 | 363 | Dec 2025 |
| 255 | mycbos.com | 0.41/10 | - | - | Feb 2026 |
| 256 | pepsicopartners.com | 3.89/10 | - | - | May 2026 |
| 257 | quimicasoft.pet | - | - | - | Sep 2025 |
| 258 | rtkpremium.com | - | - | - | Mar 2023 |
| 259 | servinotas.com | - | - | - | Dec 2025 |
| 260 | treetools.com.br | 1.02/10 | - | - | Mar 2024 |
| 261 | unh.edu.pe | 4.95/10 | - | - | Aug 2022 |
| 262 | unimedcentralrs.com.br | 1.00/10 | - | - | May 2025 |
| 263 | vtscloud.vn | 3.18/10 | - | - | Jun 2026 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →