acharyacenter.com

https://acharyacenter.com· First analyzed 12 May 2026· Updated 12 May 2026

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acharyacenter.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.128.152.20

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Dublin, United States

ASN

AS16509

Organization

AWS EC2 (us-east-2)

Server

Apache

Nameservers

ns2bls.name.com.ns3dgj.name.com.ns4ksy.name.com.ns1jsv.name.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

306 ms10%

Speed Index

398 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

67 KB

6 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

5 Technologies Detected

CSS Frameworks

Analytics

Web Servers

SEO Analysis

C62/100

Meta Tags13/15

Content10/12

Headings7/8

Technical14/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

acharyacenter.comacharyacenter.com

Acharya Center - Flashcards & Interactive Learning Tools

Acharya Center offers flashcards and interactive practice tools for students of all grades.

Title Length56 chars

Recommended: 50-60 chars (~336px / 580px)

Description Length91 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (1/1) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

2,082 URLs

robots.txt

Local SEO

Local Search Readiness

7/100

Poor

2 14 1

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

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

1/25

Citation

8/25

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:10%

Words:226

Token eff.:Too Short

Sections/1K:17.7

Depth:1/5

Structured Data

1 JSON-LD

sameAs entity links

Citation Readiness

Opening Summary21w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

Upgrade to view recommendations

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.

60/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

15/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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

6/15

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.

71/100

A+

7 mg

CO₂e / view

66.8 KB

Page Weight

95%

Cleaner Than

New Visitor

8 mg

Returning (cached)

4 mg

Annual (10K/mo)

804 g

Emission Segments

Data Center

<0.001 g

Network

2 mg

Device

4 mg

Resource Breakdown

JavaScript

23.7 KB

Images

6.5 KB

CSS

32.7 KB

HTML

3.8 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

3 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

61%Fair

Interactive

HTTPS

No WAF

49d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

02.04.2026

Valid Until

01.07.2026

Subject Alternative Names (1)

acharyacenter.com

SHA-256 Fingerprint

57:3F:C9:CE:B9:53:40:DA:32:30:7E:DC:4D:1F:66:B9:43:CE:FC:8F...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

3622

content-security-policy

frame-ancestors 'self';

content-type

text/html; charset=UTF-8

date

Tue, 12 May 2026 07:52:44 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

acharyacenter.com

Domain Age

10y 6m

Created

11.11.2015

Expires

11.11.2026

Last Updated

11.11.2025

Registrar

Name.com, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

66/100

Mobile Friendly1 breakpoint

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=1.0

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

78/100

Readability

/30

26/30

18px · LH 1.50

Hierarchy

/20

14/20

2.27x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans40px

Body Font

-apple-system

Sans18px

Contrast Ratio

1:1

4 issues

Reading Comfort

~36 CPL

Narrow lines

40px

32px

28px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

Flesch 43

Color Palette

9 unique colors

Light

#ffffff

Background· 46.099999999999994%

#2156f8

Accent· 16.7%

#3d3bf8

Accent· 15.8%

#212628

Text· 8.8%

#d8e0e7

Secondary· 4%

#586adc

Accent· 3.8%

#146ae7

Primary· 2.9%

#24294b

Secondary· 1.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

5 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.jsdelivr.net(2)googletagmanager.com(1)

Website Identity

Acharya Center

EducationalOrganization

Acharya Center offers flashcards and interactive practice tools for students of all grades.

10 years old

Location detected: 🇺🇸 United Statesvia ip

Name.com, Inc.📧 Google Workspaceen

Sponsored

Last analyzed: 12 May 2026 at 07:52

Historical Analysis & Change Tracking