Lighthouse says that chrono has an invalid robots.txt. Source: https://googlechrome.github.io/lighthouse/viewer/?psiurl=https%3A%2F%2Fwww.chrono.crux-bphc.com%2F&strategy=mobile&category=performance&category=accessibility&category=best-practices&category=seo&category=pwa&utm_source=lh-chrome-ext#
Lighthouse says that chrono has an invalid robots.txt. Source: https://googlechrome.github.io/lighthouse/viewer/?psiurl=https%3A%2F%2Fwww.chrono.crux-bphc.com%2F&strategy=mobile&category=performance&category=accessibility&category=best-practices&category=seo&category=pwa&utm_source=lh-chrome-ext#