StackOptic
Back to Search
calendars.com favicon

calendars.com

https://calendars.com· First analyzed 04 May 2026· Updated 04 May 2026
Export
calendars.com
Desktop screenshot of calendars.com
Mobile screenshot of calendars.com
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

34.206.32.203

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

The Gatekeeper

Nameservers

ns59.worldnic.com.ns60.worldnic.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
440 ms10%
Speed Index
572 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
519 KB
49 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

10 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook Pixel
Hotjar

Payments

3
StripePayPalKlarna

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

SEO Analysis

C63/100
20
6
2
Meta Tags4/15
Content10/12
Headings8/8
Technical21/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability0/3
C
calendars.comcalendars.com

Welcome to Calendar Club UK

No description available for this page.

Title Length27 chars

Recommended: 50-60 chars (~166px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Page is set to noindex — will not appear in search results

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

42 rules

Sitemap reference found

Local SEO

Local Search Readiness

22/100
Needs Work
6 11 1

Sponsored

AI & LLM Readiness

F36/100
Bot Access
15/25
Machine Read.
8/25
Schema Data
5/25
Citation
8/25

AI Bot Access

10/14 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:2,381
Token eff.:Optimal
Sections/1K:1.7
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1BreadcrumbList
sameAs entity links

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
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
75/100
11
Passed
3
Critical
1
Warnings
Images & Alt Text
15/20
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
12/15
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
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.
73/100
A
52 mg
CO₂e / view
519.3 KB
Page Weight
80%
Cleaner Than
New Visitor
60 mg
vs
Returning (cached)
30 mg
Annual (10K/mo)
6.3 kg
Emission Segments
Data Center
3 mg
Network
15 mg
Device
35 mg
Resource Breakdown
JavaScript
91.6 KB
Images
302.9 KB
Fonts
44.2 KB
HTML
36.6 KB
Other
44.0 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

15%Critical
Critical / Transactional

HTTPS

No WAF

68d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.06.2025

Valid Until

11.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.calendarclub.co.ukcalendarclub.co.uk

SHA-256 Fingerprint

F3:E0:73:CA:E0:B1:FE:BB:83:3E:EC:44:23:D6:00:99:A6:55:8B:EF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache, no-store)
content-encoding
📦 Gzip(gzip)
content-length
37166
content-type
text/html; charset=utf-8
date
Mon, 04 May 2026 18:21:48 GMT
expires
-1
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mail.calendars.com
mail.bestline.biz

Domain Information

calendars.com

Domain Age
27y 7m

Created

23.09.1998

Expires

22.09.2034

Last Updated

22.09.2024

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
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.
B
76/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial
69/100
Readability
/30
17/30

13px · LH 1.43

Hierarchy
/20
17/20

2.15x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
18/25

1 font · 3 req

Heading Font

Open Sans

Sans28px

Body Font

Open Sans

Sans13px

Contrast Ratio

1:1

3 issues

Reading Comfort

~45 CPL

Optimal (45–75)
28px
h1
26px
h2
28px
h3
12px
h4
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

Buy on MyFontsFlesch 65

Color Palette

7 unique colors
9.9:1 AAA Light
#b2b2b2
Other· 53.400000000000006%
#000000
Background· 18.799999999999997%
#ffffff
Primary· 0%
#9b1a12
Accent· 13.2%
#682c2b
Secondary· 2.9%
#80130d
Accent· 0.4%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Affiliate & Partnerships

1
AWINMid-Market

Affiliate networks and partner tracking

Reviews & Social Proof

1
FeefoMid-Market

Customer reviews and testimonials

3

Categories

4

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Well-developed marketing technology stack

Sponsored

Scripts & Styles

9 Resources

8
Scripts
1
Styles
6
Async
2
Defer

Top Script Sources

googletagmanager.com(3)google-analytics.com(2)api.feefo.com(1)local(1)dwin1.com(1)

Website Identity

calendars.com

08081781344
27 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLCX-DEFAULT

Sponsored

Last analyzed: 04 May 2026 at 18:22

Historical Analysis & Change Tracking