Using static-webmentions that has Will Norris’ Go webmention library under the hood.
https://webmention.rocks/test/1 https://webmention.rocks/test/2 https://webmention.rocks/test/3 https://webmention.rocks/test/4 https://webmention.rocks/test/5 https://webmention.rocks/test/6 https://webmention.rocks/test/7 https://webmention.rocks/test/8 https://webmention.rocks/test/9 https://webmention.rocks/test/10 https://webmention.rocks/test/11 https://webmention.rocks/test/12 https://webmention.rocks/test/13 https://webmention.rocks/test/14 https://webmention.rocks/test/15 https://webmention.rocks/test/16 https://webmention.rocks/test/17 https://webmention.rocks/test/18 https://webmention.rocks/test/19 https://webmention.rocks/test/20 https://webmention.rocks/test/21 https://webmention.rocks/test/22 https://webmention.rocks/test/23/page