Jan Willem Stegink
Jan Willem Stegink
RFC 9116 may specify that a security.txt expiration date is not valid if it is more than 400 days in the future. As a result, the intended single annual cycle...
For internet.nl, registration of a webdomain may become of additional value. All kinds of new scripts become annoyingly complicated. On https://rdap.hostingtool.nl/ my modeling should minimize the gap between technical and...
The explanation for security.txt may show a URL that you can copy and paste to avoid typing problems. See an incomplete path for example in: https://en.internet.nl/site/rijksoverheid.nl/2671942/#control-panel-31 currently: security.txt retrieved from...
Anycast technique is used to connect to an alternative name server for accessibility. Unfortunately, the only clumsy way to detect the use of Anycast is via other Anycast servers around...
RFC 9116: The "Expires" field indicates the date and time after which the data contained in the "security.txt" file is considered stale and should not be used (as per Section...
If redirected, HTTP security headers, except HSTS, should be gray in color. The warning explanation on internet.nl is incorrect and misleading. 
Email test: kconline.kcdekempen.nl (@bwbroersma already informed) If the test of secure mail server connections does not end successfully: 1. The DNS settings for email may still be evaluated and/or displayed;...
https://en.internet.nl/site/metaregistrar.com/2964873/  https://www.hostingtool.nl/server_headers/index.php?url=metaregistrar.com 
Time-outs deserve recognition as a fundamental quality issue. While often dismissed as temporary, they indicate a service that is effectively unreachable. This makes them just as serious as missing encryption...