1. Resource Hints: dns-prefetch

    Gives a hint to the browser to perform a DNS lookup in the background to improve performance. This is indicated using `<link rel="dns-prefetch" href="https://example.com/">`

  2. Resource Hints: preconnect

    Gives a hint to the browser to begin the connection handshake (DNS, TCP, TLS) in the background to improve performance. This is indicated using `<link rel="preconnect" href="https://example-domain.com/">`

  3. Resource Hints: prefetch

    Informs the browsers that a given resource should be prefetched so it can be loaded more quickly. This is indicated using `<link rel="prefetch" href="(url)">`

  4. Resource Hints: preload

    Using `<link rel="preload">`, browsers can be informed to prefetch resources without having to execute them, allowing fine-grained control over when and how resources are loaded. Only the following `as` values are supported: fetch, image, font, script, style, track.

  5. Resource Hints: prerender

    Gives a hint to the browser to render the specified page in the background, speeding up page load if the user navigates to it. This is indicated using `<link rel="prerender" href="(url)">`

  6. prefers-color-scheme media query

    Media query to detect if the user has set their system to use a light or dark color theme.

  7. prefers-reduced-motion media query

    CSS media query based on a user preference for preferring reduced motion (animation, etc).

  8. presentation api

  9. presentationavailability api

  10. presentationavailability api: `change` event

  11. presentationavailability api: value

  12. presentationconnection api

  13. presentationconnectionavailableevent api

  14. presentationconnectioncloseevent api

  15. presentationconnectioncloseevent api: message

  16. presentationconnectioncloseevent api: reason

  17. presentationconnectionlist api

  18. presentationconnectionlist api: connections

  19. presentationconnection api: binarytype

  20. presentationconnection api: close

  21. presentationconnection api: `close` event

  22. presentationconnection api: `connect` event

  23. presentationconnection api: id

  24. presentationconnection api: `message` event

  25. presentationconnection api: send

  26. presentationconnection api: state

  27. presentationconnection api: terminate

  28. presentationconnection api: `terminate` event

  29. presentationconnection api: url

  30. presentationreceiver api

  31. presentationreceiver api: connectionlist

  32. presentationrequest api

  33. presentationrequest api: getavailability

  34. presentationrequest api: reconnect

  35. presentationrequest api: secure context required

  36. presentationrequest api: start

  37. presentation api: defaultrequest

  38. presentation api: receiver

  39. pressureobserver api

  40. pressureobserver api: disconnect

  41. pressureobserver api: knownsources_static

  42. pressureobserver api: observe

  43. pressureobserver api: takerecords

  44. pressureobserver api: unobserve

  45. pressurerecord api

  46. pressurerecord api: source

  47. pressurerecord api: state

  48. pressurerecord api: time

  49. pressurerecord api: tojson

  50. html element: pre