Portolani

Generate portolani: simplified, delta-encoded coastline and land geometry from Natural Earth, with the provenance to reproduce it

Description excerpted from the original listing, which is linked below.

Open it Listing

Facts

Published: 26 Aug 2026 (19d ago)
Medium: web
Language: English (the page says so itself)
Subject: Developer tools
First seen: 15 Sep 2026, 17:14 UTC

Built with

Claude Code: confirmed
the agent's own trailer in the repository's commit history

What we can see

94 hygiene score

Certificate issued by WE1, 85 days remaining
Cookie attributes 1 cookies, 0 without the secure flag
Credentials and payment does not ask for either
Strict transport security set
Served over HTTPS
Mail authentication neither published
No insecure resources
Redirects none
Security headers 5 of 5 set, policy permits inline or evaluated script
Third-party origins none
Transport security TLS 1.3

Observed 15 Sep 2026 by fetching the page as a browser would. This describes hygiene and transparency, not safety: a missing header does not make a site dangerous, and a complete set does not make it trustworthy.

Changes we have seen

15 Sep 2026 first indexed