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Certified Website Score for

preflight.sh

A CLI tool that scans your codebase for launch readiness before you deploy to production. Catches security issues, SEO problems, and common mistakes.

First audit: December 22, 2025•Last audit: December 26, 2025
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88
Overall
100Website Quality
70Trust & Security
95PageSpeed
Score trend

Latest audit — December 26, 2025

Deep, transparent insight into how this score is built: PageSpeed vitals, on‑page quality signals, and trust & security checks — all broken down into clear, verifiable items you can act on.

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Site Quality

Title
20/20
Preflight.sh | Stop embarrassing yourself in production.
56 chars (ideal 30–60)
Meta Description
15/15
A CLI tool that scans your codebase for launch readiness before you deploy to production. Catches security issues, SEO problems, and common mistakes.
149 chars (ideal 120–160)
Favicon
3/3
Favicon preview
https://preflight.sh/assets/images/favicon.ico
present
Viewport meta
8/8
width=device-width, initial-scale=1.0
correct (width=device-width, initial-scale=1)
robots.txt
6/6
User-agent: * Allow: / Sitemap: https://preflight.sh/sitemap.xml
perfect (User-agent + Allow + Sitemap)
Sitemap
7/7
https://preflight.sh/sitemap.xml
present
llms.txt
0/0
present
present
Headings
6/6
H1Stop embarrassing yourself in production.
H2Why use this?
H2What it checks
H2It also checks 70+ services
H3✓ Payments
H3✓ Error Tracking
H3✓ Email & Newsletters
H3✓ Analytics
H3✓ Auth
H3✓ Chat
H3✓ Notifications
H3✓ Infrastructure
H3✓ Storage & CDN
H3✓ Search & SEO
H3✓ AI & LLMs
H3✓ Cookie Consent
correct structure
Schema.org JSON-LD
2/2
Software App: Preflight.sh
1 schema found
Canonical URL
8/8
https://preflight.sh/
present
HTML lang
4/4
en
present
Character encoding
4/4
UTF-8
present

Open Graph

Title
3/3
Preflight.sh | Stop embarrassing yourself in production.
present
Description
3/3
A CLI tool that scans your codebase for launch readiness before you deploy to production. Catches security issues, SEO problems, and common mistakes.
present
Image
3/3
Image preview
https://preflight.sh/assets/images/og-image.png
present
URL
3/3
https://preflight.sh/
present
Type
1/1
website
present

Twitter Cards

Card Type
1/1
summary_large_image
present
Title
1/1
Preflight.sh | Stop embarrassing yourself in production.
present
Description
1/1
A CLI tool that scans your codebase for launch readiness before you deploy to production. Catches security issues, SEO problems, and common mistakes.
present
Image
1/1
Image preview
https://preflight.sh/assets/images/og-image.png
present

Security Headers

HTTPS
30/30
HTTPS enabled
HTTP Strict Transport Security
15/15
Strict-Transport-Security: max-age=31536000; includeSubDomains, max-age=31536000; includeSubDomains
Content Security Policy
15/15
Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://kit.fontawesome.com https://ka-f.fontawesome.com https://t.preflight.sh https://use.typekit.net https://trustviews.io https://buttons.github.io https://onedollarfeedback.com; style-src 'self' 'unsafe-inline' https://use.typekit.net https://p.typekit.net https://ka-f.fontawesome.com https://ka-p.fontawesome.com; font-src 'self' https://use.typekit.net https://ka-f.fontawesome.com https://ka-p.fontawesome.com; img-src 'sel...
Frame Protection
5/5
X-Frame-Options: SAMEORIGIN
MIME Type Protection
5/5
X-Content-Type-Options: nosniff, nosniff

Domain Trust

Domain Rating
0/25
How to improve DR→
no domain rating found
Domain Age
0/5
0 years
Registrar
NAMECHEAP INC
Country
IS

Infrastructure

Provider
no hosting or CDN provider detected
72

Performance

100

SEO

100

Best Practices

96

Accessibility

Performance
72/100
Largest Contentful Paint
6/25
5.1s
2.5s4.0s
First Contentful Paint
4/10
3.3s
1.8s3.0s
Total Blocking Time
30/30
7ms
200ms400ms
Cumulative Layout Shift
25/25
0.00
0.100.25
Speed Index
7/10
4.9s
3.4s5.4s
SEO
100/100
Page isn’t blocked from indexing
31/31
Document has a `<title>` element
8/8
Document has a meta description
8/8
Page has successful HTTP status code
8/8
Links have descriptive text
8/8
Links are crawlable
8/8
robots.txt is valid
8/8
Image elements have `[alt]` attributes
8/8
Document has a valid `hreflang`
8/8
Document has a valid `rel=canonical`
8/8
Best Practices
100/100
Uses HTTPS
19/19
Avoids deprecated APIs
19/19
Avoids third-party cookies
19/19
Allows users to paste into input fields
12/12
Avoids requesting the geolocation permission on page load
4/4
Avoids requesting the notification permission on page load
4/4
Displays images with correct aspect ratio
4/4
Serves images with appropriate resolution
4/4
Page has the HTML doctype
4/4
Properly defines charset
4/4
No browser errors logged to the console
4/4
No issues in the `Issues` panel in Chrome Devtools
4/4
Accessibility
96/100
`[aria-*]` attributes match their roles
6/6
`[aria-hidden="true"]` is not present on the document `<body>`
6/6
`[aria-*]` attributes have valid values
6/6
`[aria-*]` attributes are valid and not misspelled
6/6
Buttons have an accessible name
6/6
Image elements have `[alt]` attributes
6/6
Form elements have associated labels
6/6
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
6/6
ARIA attributes are used as specified for the element's role
4/4
`[aria-hidden="true"]` elements do not contain focusable descendents
4/4
Elements use only permitted ARIA attributes
4/4
Background and foreground colors do not have a sufficient contrast ratio.
0/4
Document has a `<title>` element
4/4
`<html>` element has a `[lang]` attribute
4/4
`<html>` element has a valid value for its `[lang]` attribute
4/4
Links have a discernible name
4/4
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
4/4
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
4/4
Touch targets have sufficient size and spacing.
4/4
Heading elements appear in a sequentially-descending order
2/2
Document has a main landmark.
2/2
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