flappybird.io

https://flappybird.io· First analyzed 17 May 2026· Updated 17 May 2026

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flappybird.io

Mobile

Sponsored

Hosting Provider

The Constant Company, LLC

IP Address

64.176.199.138

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Piscataway, United States

ASN

AS20473

Organization

The Constant Company, LLC

Server

Nginx

Nameservers

dns2.registrar-servers.com.dns1.registrar-servers.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1 MB

22 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

The Constant Company, LLC

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

5 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Advertising

Google Ads Google AdSense

Web Servers

Nginx

SEO Analysis

D40/100

Meta Tags5/15

Content2/12

Headings6/8

Technical11/25

E-E-A-T0/7

Images1/7

Links3/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

flappybird.ioflappybird.io

Play Flappy Bird

Play Flappy Bird for free online in HTML5

Title Length16 chars

Recommended: 50-60 chars (~92px / 580px)

Description Length41 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (12 words). Search engines need substantial content for ranking.
• Most images missing alt text (1/1) — critical for accessibility and SEO

10 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F31/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

1/25

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

Machine Readability

llms.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:0%

Words:9

Token eff.:Too Short

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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Sponsored

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.

58/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

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

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•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.

43/100

128 mg

CO₂e / view

1.0 MB

Page Weight

70%

Cleaner Than

New Visitor

146 mg

Returning (cached)

73 mg

Annual (10K/mo)

15.3 kg

Emission Segments

Data Center

29 mg

Network

31 mg

Device

69 mg

Resource Breakdown

JavaScript

970.8 KB

Images

23.9 KB

CSS

35.7 KB

HTML

1.5 KB

Other

600 B

Green Hosting Not Verified

The Constant Company, LLC

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

15.05.2026

Valid Until

13.08.2026

Subject Alternative Names (2)

flappybird.ioio.flappybird.org

SHA-256 Fingerprint

2D:2A:AA:1E:91:51:99:9B:0C:49:69:C2:4B:A4:25:A3:DD:ED:F3:F4...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sun, 17 May 2026 02:49:19 GMT

etag

W/"69249009-df0"

last-modified

Mon, 24 Nov 2025 17:04:09 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (1)

smtp.google.com

Domain Information

flappybird.io

Domain Age

12y 3m

Created

10.02.2014

Expires

10.02.2027

Last Updated

11.10.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

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.

70/100

Mobile Friendly

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG AA

76/100

Readability

/30

22/30

14px · LH 1.43

Hierarchy

/20

13/20

1.29x ratio · ✓ H1→H6

WCAG

/25

21/25

6.36:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Sans18px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

6.36:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

center aligned

18px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.4:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

8 unique colors

Dark

#000000

Background· 97.70000000000002%

#af62ab

Primary· 0.3%

#c4dea9

Secondary· 0.2%

#3f2d44

Secondary· 0.2%

#8fa885

Secondary· 0.2%

#5a5975

Secondary· 0.2%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pagead2.googlesyndication.com(2)fundingchoicesmessages.google.com(2)playcanvas-stable.min.js(1)__settings__.js(1)googletagmanager.com(1)

Website Identity

flappybird.io

12 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.📧 Google Workspace

Sponsored

Last analyzed: 17 May 2026 at 02:49

Historical Analysis & Change Tracking