Certified Website Score for

thatoneliner.com

OneLinerAI helps founders instantly craft clear, emotional one-liners for landing pages, pitch decks, and startup launches.

First audit: November 5, 2025•Last audit: November 5, 2025

Visit website

Overall

100Website Quality

70Trust & Security

98PageSpeed

Score trend

Not enough data to display a trend yet.

Latest audit — November 5, 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.

👇Click to open / close

Site Quality

Title

20/20

OneLinerAI — Find the one-liner your product deserves

53 chars (ideal 30–60)

Meta Description

15/15

OneLinerAI helps founders instantly craft clear, emotional one-liners for landing pages, pitch decks, and startup launches.

123 chars (ideal 120–160)

Favicon

3/3

https://thatoneliner.com/favicon.ico

present

Viewport meta

8/8

width=device-width, initial-scale=1

correct (width=device-width, initial-scale=1)

robots.txt

6/6

# OneLinerAI Robots Configuration # Brand colors: #7C6EFF (violet), #6366F1 (indigo) User-agent: * Allow: / # Sitemap location Sitemap: https://thatoneliner.com/sitemap.xml # Disallow admin and API routes Disallow: /api/ Disallow: /_next/ # Crawl-delay for respectful crawling Crawl-delay: 1

perfect (User-agent + Allow + Sitemap)

Sitemap

7/7

https://thatoneliner.com/sitemap.xml

present

Headings

6/6

H1Find the one-liner that makes people get it

H2Clarity in seconds

H33-step process

H3Lightning fast

H3Copy & share

H2Free forever Upgrade anytime

H2No fluff. Just answers

H3Find your perfect line.

correct structure

Schema.org JSON-LD

2/2

FAQ Page:

• What is OneLinerAI used for?

• Do I need an account?

• Is there a free version?

• Which model powers the app?

• Can I use the lines commercially?

• Can OneLinerAI write in different tones or styles?

• What makes OneLinerAI different?

• How does OneLinerAI compare to ChatGPT or Jasper?

• Who's behind OneLinerAI?

• Is OneLinerAI good for startup copywriting?

1 schema found

Canonical URL

8/8

https://thatoneliner.com

present

HTML lang

4/4

present

Character encoding

4/4

utf-8

present

Open Graph

Title

3/3

OneLinerAI — Find the perfect one-liner for your startup

present

Description

3/3

Instant tagline generator for founders and indie builders. Type your idea, get the perfect line.

present

Image

3/3

https://thatoneliner.com/og.png

present

URL

3/3

https://thatoneliner.com

present

Type

1/1

website

present

Twitter Cards

Card Type

1/1

summary_large_image

present

Title

1/1

OneLinerAI — Find the perfect one-liner for your startup

present

Description

1/1

Instant tagline generator for founders and indie builders. Type your idea, get the perfect line.

present

Image

1/1

https://thatoneliner.com/og.png

present

Security Headers

HTTPS

30/30

HTTPS enabled

HTTP Strict Transport Security

15/15

Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

Content Security Policy

15/15

Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://tally.so https://vercel.live https://va.vercel-scripts.com https://us-assets.i.posthog.com; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' data:; connect-src 'self' https://api.openai.com https://vitals.vercel-insights.com https://va.vercel-scripts.com https://us.i.posthog.com https://us-assets.i.posthog.com; frame-src 'self' https://tally.so; object-src 'none'; base-uri 'self'; form-actio...

Frame Protection

5/5

X-Frame-Options: SAMEORIGIN

MIME Type Protection

5/5

X-Content-Type-Options: nosniff

Domain Trust

Domain Rating

0/25

no domain rating found

Domain Age

0/5

0 years

Registrar

Cloudflare, Inc.

Country

Infrastructure

Provider

Vercel

Performance

100

SEO

100

Best Practices

Accessibility

Performance

97/100

Largest Contentful Paint

23/25

2.3s

2.5s4.0s

First Contentful Paint

9/10

1.7s

1.8s3.0s

Total Blocking Time

30/30

0ms

200ms400ms

Cumulative Layout Shift

25/25

0.00

0.100.25

Speed Index

10/10

2.8s

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

5/5

`[aria-hidden="true"]` is not present on the document `<body>`

5/5

`[role]`s have all required `[aria-*]` attributes

5/5

`[role]` values are valid

5/5

`[aria-*]` attributes have valid values

5/5

`[aria-*]` attributes are valid and not misspelled

5/5

Buttons have an accessible name

5/5

Image elements have `[alt]` attributes

5/5

Form elements have associated labels

5/5

`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

5/5

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 are distinguishable without relying on color.

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

Deprecated ARIA roles were not used

1/1

Instant Audit

See your site the way search engines feel it

Launch a free crawl in under 30 seconds and get a ranked hit-list of fixes that lift speed, visibility, and trust.

Start Free Analysis