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growthbook.io

https://growthbook.io· First analyzed 09 Sept 2026· Updated 09 Sept 2026
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growthbook.io
Desktop screenshot of growthbook.io
Mobile screenshot of growthbook.io
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

108.156.22.30

Site Location

🇮🇪 Irelandvia ip

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-876.awsdns-45.net.ns-1335.awsdns-38.org.ns-176.awsdns-22.com.ns-1834.awsdns-37.co.uk.

Performance

81

Core Web Vitals

Weight

First Contentful Paint
2.2 s10%
Speed Index
2.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
359 KB
107 requests

Image Optimization

Lazy LoadAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
HubSpot CMS

Technology Stack

14 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Plausible Analytics

Other

2
GSAPv3.15.0Lottie

CSS Frameworks

2
Tailwind CSS
Ant Design

Libraries

1
jQueryv3.5.1

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Marketing

1
HubSpot

CDN

1
Cloudflare

Customer Support

1
Zendesk

SEO Analysis

B74/100
24
4
1
Meta Tags9/15
Content10/12
Headings8/8
Technical20/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
G
growthbook.iogrowthbook.io

GrowthBook | Experimentation, Feature Flags & Product Analytics Pla...

The 1st warehouse-native platform for experimentation, feature flags, and product analytics. Open source and fully transparent. Trusted by 3,000+ companies.

Title truncated.
Title Length72 chars

Recommended: 50-60 chars (~440px / 580px)

Description Length156 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (72 chars, ~440px). Will be truncated in search results.

5 issues found

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Crawlability

Sitemap

Type: standard

594 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

16/100
Poor
4 13 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
3/25
Citation
15/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User
data-nosnippet

Machine Readability

llms.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
blockquotes
Text ratio:1%
Words:3,759
Token eff.:Poor Structure
Depth:1/5

Structured Data

1 JSON-LD
Organization×1.1
sameAs entity links

Citation Readiness

Opening Summary47w
Descriptive Headingsavg 5.1w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
A+
90/100
15
Passed
1
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
76/100
A+
36 mg
CO₂e / view
358.9 KB
Page Weight
90%
Cleaner Than
New Visitor
41 mg
vs
Returning (cached)
21 mg
Annual (10K/mo)
4.3 kg
Emission Segments
Data Center
2 mg
Network
11 mg
Device
24 mg
Resource Breakdown
JavaScript
302.6 KB
CSS
15.4 KB
HTML
40.6 KB
Other
300 B
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
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B

Security Score

71%Good
Interactive

HTTPS

WAF

74d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

24.08.2026

Valid Until

22.11.2026

Subject Alternative Names (1)

www.growthbook.io

SHA-256 Fingerprint

57:25:70:3A:CA:86:C4:F4:56:5F:97:E4:C7:C2:8E:44:66:7F:F9:33...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
MISS
cf-ray
a38551d458fd8782-GRU
content-encoding
📦 Gzip(gzip)
content-security-policy
frame-ancestors 'self'
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Google Workspace

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (6)

alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
alt2.aspmx.l.google.com
alt1.aspmx.l.google.com

+2 more

Domain Information

growthbook.io

Domain Age
6y 3m

Created

19.05.2020

Expires

19.05.2027

Last Updated

12.08.2026

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
75/100
Mobile Friendly7 breakpoints
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Inter

WCAG AA
77/100
Readability
/30
22/30

15px · LH 1.60

Hierarchy
/20
16/20

4.53x ratio · ✓ H1→H6

WCAG
/25
21/25

5.39:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

Inter

Sans68px

Body Font

Inter

Sans15px

Contrast Ratio

5.39:1

WCAG AA (≥4.5:1)

Reading Comfort

~49 CPL

Optimal (45–75)
68px
h1
68px
h2
56px
h3
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~49 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.4:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

Buy on MyFontsFlesch 40

Color Palette

5 unique colors
Light
#fafafa
Background· 81.5%
#1d32a9
Accent· 6.6%
#6d58c8
Primary· 5.7%
#9a9bb4
Secondary· 3.6%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
PlausibleSMB

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

2

Categories

4

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

24 Resources

19
Scripts
5
Styles
12
Async
2
Defer

Top Script Sources

googletagmanager.com(4)cdn.prod.website-files.com(3)consent.cookiebot.com(2)cdn.jsdelivr.net(2)cdn.growthbook.io(2)

Website Identity

GrowthBook

SoftwareApplication

Warehouse-native platform for A/B testing, feature flags, and product analytics. Run 5x more experiments at 1/5th the cost.

/
6 years old
Location detected: 🇮🇪 Irelandvia ip
GoDaddy.com, LLC📧 Google Workspaceen

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Last analyzed: 09 Sept 2026 at 09:56

Historical Analysis & Change Tracking