This plugin is licensed under the GNU General Public License v2 or later.
Full text: https://www.gnu.org/licenses/gpl-2.0.html

Third-party code:
- vendor/axe-core: axe-core 4.13.0 by Deque Systems, Inc., Mozilla Public License 2.0
  (vendor/axe-core/LICENSE). The file carries no "Incompatible With Secondary
  Licenses" notice, so MPL-2.0 section 3.3 allows it to be distributed as part of
  this GPL-licensed larger work. Source code: see vendor/axe-core/README.md.
