calculator.academy

https://calculator.academy· First analyzed 10 May 2026· Updated 10 May 2026

Export

calculator.academy

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.26.0.140

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

mitch.ns.cloudflare.com.ruth.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

633 ms10%

Speed Index

823 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

339 KB

65 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

GeneratePressv3.6.1

by Tom Usborne

View Theme

Technology Stack

12 Technologies Detected

Plugins

Calculator Benchmarks Gp Premium

Analytics

CSS Frameworks

Fonts

Advertising

CDN

Customer Support

SEO Analysis

B77/100

Meta Tags15/15

Content3/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images2/7

Links4/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

calculator.academycalculator.academy

Calculator Academy - Free and Easy to use Calculators

Free and easy to use calculators for all of your daily problems. Finance, Math, Health & Fitness, and more calculators all brought to you for free.

Title Length53 chars

Recommended: 50-60 chars (~322px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (12 words). Search engines need substantial content for ranking.

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

19 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

18/100

Poor

5 12

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

Sponsored

AI & LLM Readiness

D42/100

Bot Access

18/25

Machine Read.

7/25

Schema Data

8/25

Citation

9/25

AI Bot Access

11/14 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:2%

Words:846

Token eff.:Optimal

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

88/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

17/20

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

14/15

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

7/15

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

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.

73/100

A+

34 mg

CO₂e / view

339.2 KB

Page Weight

90%

Cleaner Than

New Visitor

39 mg

Returning (cached)

20 mg

Annual (10K/mo)

4.1 kg

Emission Segments

Data Center

2 mg

Network

10 mg

Device

23 mg

Resource Breakdown

JavaScript

239.2 KB

Images

22.0 KB

CSS

16.3 KB

HTML

59.7 KB

Other

1.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

41%Poor

Interactive

HTTPS

WAF

89d

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

09.05.2026

Valid Until

07.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

calculator.academy60101583adec3b75d21dc621.calculator.academy

SHA-256 Fingerprint

1C:16:75:79:2A:13:11:93:FB:69:45:0B:D9:EA:07:43:60:B2:5D:44...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-apo-via

tcache

cf-cache-status

HIT

cf-edge-cache

cache,platform=wordpress

cf-ray🇦🇹 Vienna

9f9629c59fe1c314-VIE

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx1.titan.email

mx2.titan.email

Domain Information

calculator.academy

Domain Age

7y 1m

Created

05.04.2019

Expires

05.04.2027

Last Updated

21.03.2026

Registrar

Automattic Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer 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.

76/100

Mobile Friendly12 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

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Arial

WCAG AA

69/100

Readability

/30

17/30

22px · LH 2.40

Hierarchy

/20

13/20

1.82x ratio · ✓ H1→H6

WCAG

/25

18/25

4.83:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Arial

Sans40px

Body Font

Arial

Sans22px

Contrast Ratio

4.83:1

WCAG AA (≥4.5:1)

Reading Comfort

~32 CPL

Narrow lines

40px

30px

20px

22px

✅ Excellent readability: 22px body text is ideal for all devices.

⚠️ Wide line spacing (2.40). 1.4–1.6 is optimal for body text.

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.8:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Flesch 34

Color Palette

6 unique colors

Light

#c8c8c8

Other· 61.800000000000004%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

calculator.academy(4)ads.adthrive.com(3)securepubads.g.doubleclick.net(2)googletagmanager.com(2)socialcanvas-cdn.kargo.com(1)

Website Identity

Calculator Academy

Organization

Free and easy to use calculators for all of your daily problems. Finance, Math, Health & Fitness, and more calculators all brought to you for free.

calculator.academy/

7 years old

Location detected: 🇨🇦 Canadavia ip

Automattic Inc.en-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn Pinterest

Sponsored

Last analyzed: 10 May 2026 at 04:22

Historical Analysis & Change Tracking