PWA Install Readiness and Manifest Asset Gate
Pricing
from $20.00 / 1,000 run starteds
Reads the manifest link from the HTML head of each origin, reads the web app manifest, then verifies every declared icon, screenshot and shortcut icon with one HEAD and one ranged GET. It reports the true pixel size read from the file header against the d
1 to 100 public site origins or page URLs. The Actor reads the manifest link from the HTML head of each one. Private, loopback and reserved addresses are refused, and so are URLs that hold credentials.
[ "https://squoosh.app/"]Square icon edges that the manifest must cover with a reachable general-purpose icon. An icon that declares a larger square covers a smaller requirement.
[ "192", "512"]The manifest must declare at least one reachable icon with purpose "maskable". Without one, Android crops the icon into the adaptive shape.
Form factors that the screenshots must cover for the rich install dialog. A screenshot with no form_factor member counts as narrow. An empty list turns the rule off.
[ "narrow", "wide"]How many shortcuts the manifest must declare for the long-press menu. 0 turns the rule off.
The display modes that count as installable. The manifest passes when display, or an entry of display_override, holds one of them.
[ "standalone", "fullscreen", "minimal-ui", "window-controls-overlay"]The rules that decide the verdict. An empty list runs every rule.
[ "manifest_link", "manifest_reachable", "manifest_parsable", "manifest_content_type", "name", "short_name", "start_url", "scope", "display", "background_color", "theme_color", "icon_sizes", "icon_assets", "maskable_icon", "screenshots", "shortcuts", "shortcut_icon_assets", "service_worker", "secure_origin"]Candidate paths for the service worker script, tried in order. A registration found inside an inline script of the page is tried first. Each path is resolved against the page URL.
[ "/sw.js", "/service-worker.js", "/serviceworker.js"]Hard cap on the number of verified assets in one run. Assets above the cap are counted in the origin record and are not verified or charged.
How many bytes of each asset the ranged GET reads. 64 bytes is enough for PNG, GIF, WebP, BMP and ICO. Raise it to about 4096 when your icons are JPEG or SVG, because their size sits deeper in the file.
Hop limit for one request. A chain that does not end inside this limit is reported as unreachable.
Timeout for one HTTP request.
Hard cap on the bytes read from one HTML page or one manifest. A larger document is cut.
How many asset probes run at the same time. Keep this low, so your CDN is not put under load.