Whether you're just starting out or feeling stuck midway, our guided, hands-on programs in the most in-demand technologies - AI/ML on AWS/Azure/Google/Oracle,

Title Length18 chars

Recommended: 50-60 chars (~115px / 580px)

Description Length158 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (199/211) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

44 rules

Sitemap reference found

Local SEO

Local Search Readiness

30/100

Needs Work

8 9 1

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AI & LLM Readiness

D45/100

Bot Access

22/25

Machine Read.

1/25

Schema Data

8/25

Citation

14/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:3%

Words:3,769

Token eff.:Poor Structure

Structured Data

4 JSON-LD

Person×1.3Organization×1.1WebSiteSearchAction

Citation Readiness

Opening Summary3246w

Descriptive Headingsavg 4w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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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.

78/100

Passed

Critical

Warnings

Images & Alt Text

8/20

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

15/15

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

ARIA & Roles

12/15

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

1 recommendation

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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.

48/100

160 mg

CO₂e / view

1.3 MB

Page Weight

70%

Cleaner Than

New Visitor

183 mg

Returning (cached)

91 mg

Annual (10K/mo)

19.2 kg

Emission Segments

Data Center

36 mg

Network

38 mg

Device

86 mg

Resource Breakdown

JavaScript

535.4 KB

Images

232.7 KB

CSS

447.8 KB

Fonts

2.8 KB

HTML

72.6 KB

Other

1.1 KB

Green Hosting Not Verified

Sucuri

5 recommendations

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Security Score

81%Very Good

Interactive

HTTPS

WAF

53d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Starfield Technologies, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.04.2026

Valid Until

08.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.k21academy.comk21academy.com

SHA-256 Fingerprint

E5:AB:B6:1C:6F:2A:DC:55:C1:3A:09:F1:5A:94:38:7A:A4:76:6F:8F...

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HTTP Headers

Developer Console

accept-ranges

bytes

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000

cache-control

🟡 0s(max-age=0)

content-encoding

📦 Gzip(gzip)

content-length

74007

content-security-policy

upgrade-insecure-requests;

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

k21academy.com

Domain Age

10y 7m

Created

20.10.2015

Expires

20.10.2027

Last Updated

21.10.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

82/100

Mobile Friendly10 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

Poppins

WCAG Partial

68/100

Readability

/30

17/30

12px · LH 1.50

Hierarchy

/20

15/20

5.33x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Poppins

Sans64px

Body Font

Poppins

Sans12px

Contrast Ratio

1:1

24 issues

Reading Comfort

~38 CPL

Narrow lines

64px

82px

46px

24px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 5.3x larger than body text.

GGoogle FontsFlesch 22

Color Palette

9 unique colors

Light

#ffffff

Background· 16.8%

#003466

Primary· 42.20000000000001%

#08024e

Accent· 13.299999999999999%

#01457b

Accent· 8%

#d98151

Accent· 7.1%

#305781

Secondary· 5.3%

#ffedde

Accent· 4.2%

#d8dedf

Secondary· 2.4%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

ComplianzSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

k21academy.com(6)gstatic.com(2)a.quora.com(2)googletagmanager.com(2)connect.facebook.net(2)

Website Identity

K21 Academy

Person

[email protected]

%20+1%20605%20301%205811

10 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLC📧 Google Workspaceen-US

Social Profiles

Facebook Instagram LinkedIn

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Last analyzed: 16 May 2026 at 01:05

Historical Analysis & Change Tracking