Back to Search
calculator.now favicon

calculator.now

https://calculator.now· First analyzed 02 May 2026· Updated 02 May 2026
Export
calculator.now
Desktop screenshot of calculator.now
Mobile screenshot of calculator.now
Mobile

Sponsored

Hosting Provider

DataCamp Limited

IP Address

185.111.111.154

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS212238

Organization

DataCamp Limited

Server

BunnyCDN-IT1-1433

CDN

CDN

Nameservers

sima.ns.cloudflare.com.mitch.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
546 ms10%
Speed Index
710 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
833 KB
120 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
DataCamp Limited
CDN
CDN

Technology Stack

11 Technologies Detected

Analytics

3
Google Analytics
MatomoClicky

Advertising

3
Google AdsGoogle AdSenseCriteo

CSS Frameworks

2
Bootstrapv4.6.2
Tailwind CSS

Libraries

1
jQueryv3.6.0

Icon Libraries

1
Font Awesome

CDN

1
Bunny CDN

SEO Analysis

C64/100
17
5
0
Meta Tags14/15
Content11/12
Headings8/8
Technical15/21
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
C
calculator.nowcalculator.now

Free Online Calculators | Calculator.now

Wide range of useful online calculators at Calculator.now. Simplify your calculations with our easy-to-use calculators.

Title Length40 chars

Recommended: 50-60 chars (~236px / 580px)

Description Length126 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

    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
    0/25
    Citation
    9/25

    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
    nav
    Text ratio:5%
    Words:1,014
    Token eff.:Optimal
    Sections/1K:63.1
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary40w
    Descriptive Headingsavg 2.2w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    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.
    B
    76/100
    11
    Passed
    2
    Critical
    2
    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
    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
    5/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 recommendations
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    41/100
    B
    103 mg
    CO₂e / view
    832.6 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    118 mg
    vs
    Returning (cached)
    59 mg
    Annual (10K/mo)
    12.4 kg
    Emission Segments
    Data Center
    23 mg
    Network
    25 mg
    Device
    55 mg
    Resource Breakdown
    JavaScript
    676.7 KB
    Images
    2.2 KB
    CSS
    44.7 KB
    HTML
    24.5 KB
    Other
    84.5 KB
    Green Hosting Not Verified
    DataCamp Limited
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    41%Poor
    Interactive

    HTTPS

    No WAF

    72d

    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/2

    Valid From

    14.04.2026

    Valid Until

    13.07.2026

    Subject Alternative Names (1)

    calculator.now

    SHA-256 Fingerprint

    6E:A2:42:11:10:05:86:3B:5D:3A:FA:56:6D:33:DB:E5:63:6A:2E:46...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(public, max-age=0)
    cdn-cache
    MISS
    cdn-cachedat
    05/02/2026 16:49:58
    cdn-edgestorageid
    1433
    cdn-proxyver
    1.51
    cdn-pullzone
    3228606
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (1)

    mail.calculator.now

    Domain Information

    calculator.now

    Domain Age
    1y 7m

    Created

    30.09.2024

    Expires

    30.09.2026

    Last Updated

    02.08.2025

    Registrar

    101domain GRS Limited

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    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.
    B
    76/100
    Mobile Friendly9 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

    -apple-system

    WCAG Partial
    83/100
    Readability
    /30
    25/30

    16px · LH 1.50

    Hierarchy
    /20
    18/20

    2.5x ratio · ✓ H1→H6

    WCAG
    /25
    18/25

    1.97:1 min contrast

    Performance
    /25
    22/25

    System fonts

    Heading Font

    -apple-system

    Sans40px

    Body Font

    -apple-system

    Sans16px

    Contrast Ratio

    1.97:1

    1 issue

    Reading Comfort

    ~43 CPL

    Narrow lines
    40px
    h1
    24px
    h2
    16px
    h3
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

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

    ❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

    Flesch 0

    Color Palette

    5 unique colors
    Light
    #ffffff
    Background· 78.19999999999999%
    #9fb9d0
    Secondary· 5.8%
    #8c57a1
    Secondary· 4.6%
    #cadce6
    Secondary· 4.5%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google AnalyticsFree
    Matomo (Piwik)Mid-Market

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    1

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSenseGoogle Ad ManagerAmazon Publisher ServicesPubMaticOpenXPrebid.js

    Sponsored

    Scripts & Styles

    24 Resources

    20
    Scripts
    4
    Styles
    15
    Async
    0
    Defer

    Top Script Sources

    securepubads.g.doubleclick.net(3)cmp.inmobi.com(2)pagead2.googlesyndication.com(2)cdn1.anonymised.io(2)cdn.hadronid.net(1)

    Website Identity

    calculator.now

    1 year old
    Location detected: 🇩🇪 Germanyvia ip
    101domain GRS Limiteden

    Sponsored

    Last analyzed: 02 May 2026 at 16:51

    Historical Analysis & Change Tracking

    calculator.now Technology Stack - Built With jQuery, Bootstrap, Tailwind CSS, Font Awesome, Google Analytics | StackOptic | StackOptic