celestron.com

https://celestron.com· First analyzed 28 Apr 2026· Updated 28 Apr 2026

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celestron.com

Mobile

Sponsored

Hosting Provider

Shopify

shopify.com

IP Address

23.227.38.65

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Ottawa, Canada

ASN

AS13335

Organization

Shopify, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns23.domaincontrol.com.ns24.domaincontrol.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

255 ms10%

Speed Index

332 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

12 KB

1 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Shopify

CDN

Cloudflare

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

CDN

Cloudflare

SEO Analysis

F38/100

Meta Tags4/15

Content0/12

Headings6/8

Technical14/25

E-E-A-T0/7

Images0/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

celestron.comcelestron.com

Something went wrong

No description available for this page.

Title Length20 chars

Recommended: 50-60 chars (~130px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Very thin content (29 words). Search engines need substantial content for ranking.

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

166 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F27/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

3/25

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:1%

Words:26

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

74/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

14/20

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

9/15

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

ARIA & Roles

1/15

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

1 recommendation

•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.

65/100

A+

1 mg

CO₂e / view

12.2 KB

Page Weight

95%

Cleaner Than

New Visitor

1 mg

Returning (cached)

<0.001 g

Annual (10K/mo)

144 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

<0.001 g

Resource Breakdown

HTML

12.2 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

WAF

60d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

30.03.2026

Valid Until

28.06.2026

Subject Alternative Names (1)

celestron.com

SHA-256 Fingerprint

67:25:77:A6:09:A6:97:DE:77:E1:EF:C0:1D:54:83:AE:0E:C0:1B:89...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray

9f39ad2caa5412f4-BOS

content-type

text/html

date

Tue, 28 Apr 2026 22:59:16 GMT

nel

{"success_fraction":0.01,"report_to":"cf-nel","max_age":6048...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx2-us2.ppe-hosted.com

celestron-com.mail.protection.outlook.com

mx1-us2.ppe-hosted.com

Domain Information

celestron.com

Domain Age

29y 7m

Created

30.09.1996

Expires

29.09.2027

Last Updated

01.11.2022

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

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.

65/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG AAA

72/100

Readability

/30

16/30

15px · LH 1.80

Hierarchy

/20

12/20

1.2x ratio · ✓ H1→H6

WCAG

/25

24/25

13.2:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Sans18px

Body Font

Helvetica Neue

Sans15px

Contrast Ratio

13.2:1

WCAG AAA (≥7:1)

Reading Comfort

~37 CPL

Narrow lines

18px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 13.2:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

6 unique colors

2.86:1 Fail Light

#f1f1f1

Background· 98.69999999999997%

#8f8f90

Other· 0.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Website Identity

celestron.com

29 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLC📧 Microsoft 365en

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Last analyzed: 28 Apr 2026 at 22:59

Historical Analysis & Change Tracking