Notes

- in addition to favicon:
	<link rel="apple-touch-icon" href="/custom_icon.png">
- presskit() based impressum
	http://dopresskit.com/
- mask email address from bots
- optimize for printing
- Eliminate render-blocking  CSS in above-the-fold content
	https://paul.kinlan.me/detecting-critical-above-the-fold-css/
	https://developers.google.com/speed/docs/insights/OptimizeCSSDelivery#example
	https://github.com/filamentgroup/loadCSS/blob/master/README.md
- Eliminate render-blocking JavaScript in above-the-fold content
	https://varvy.com/pagespeed/defer-loading-javascript.html
- for SEO go here
	https://varvy.com/
- enable keep alive
	https://varvy.com/pagespeed/keep-alive.html
- possibly add analytics
	http://www.google.com/analytics/standard/
- create sitemap.xml
	https://www.woorank.com/en/edu/seo-guides/xml-sitemapsBlog
- check validator.w3.org
- custom 404 Error Page