sbig.com

https://sbig.com· First analyzed 29 May 2026· Updated 29 May 2026

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sbig.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.70.120

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Nginx

CDN

Nameservers

mona.ns.cloudflare.com.james.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

928 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.9 MB

186 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

hello-elementor

Technology Stack

38 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Microsoft Clarity Segment

Libraries

jQueryv3.7.1

jQuery UI

Other

GSAP Lottie

UI Components

Swiper Slick Carousel

CSS Frameworks

Icon Libraries

Fonts

Marketing

Advertising

Web Servers

Customer Support

SEO Analysis

A83/100

Meta Tags13/15

Content10/12

Headings6/8

Technical24/25

E-E-A-T2/7

Images3/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

sbig.comsbig.com

Diffraction - Astronomy & Scientific Imaging Solutions

Introducing the SBIG Aluma AC455 You will love the new research-grade SBIG Aluma AC455 camera – designed for your dark sky observatory or the local college c...

Description truncated.

Title Length54 chars

Recommended: 50-60 chars (~320px / 580px)

Description Length331 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (12/15) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

10 URLs

10 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

23/100

Needs Work

6 11

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

8/25

Citation

16/25

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:3%

Words:1,129

Token eff.:Optimal

Depth:1/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary22w

Descriptive Headingsavg 2.9w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

85/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

16/20

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

13/15

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.

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.

37/100

504 mg

CO₂e / view

4.9 MB

Page Weight

15%

Cleaner Than

New Visitor

576 mg

Returning (cached)

288 mg

Annual (10K/mo)

60.5 kg

Emission Segments

Data Center

25 mg

Network

148 mg

Device

331 mg

Resource Breakdown

JavaScript

608.4 KB

Images

1.3 MB

CSS

2.9 MB

Fonts

3.6 KB

HTML

36.0 KB

Other

715 B

Green Hosting Verified

Cloudflare

GWF Verified

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

56d

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

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (1)

diffractionlimited.com

SHA-256 Fingerprint

F1:F0:4B:43:48:3A:64:F8:40:B3:39:A4:9C:5D:BB:B9:B7:BE:04:D8...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 600s(max-age=600, must-revalidate)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Fri, 29 May 2026 19:56:20 GMT

link

<https://diffractionlimited.com/wp-json/>; rel="https://api....

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (4)

asp.reflexion.net

mx-110.reflexion.net

mail.sbig.com

mx-100.reflexion.net

Domain Information

sbig.com

Domain Age

30y 6m

Created

25.11.1995

Expires

24.11.2027

Last Updated

25.09.2024

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

78/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto + Montserrat

WCAG Partial

66/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

17/20

5x ratio

WCAG

/25

13/25

1:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

Roboto

Sans80px

Body Font

Montserrat

Sans16px

Contrast Ratio

1:1

24 issues

Reading Comfort

~77 CPL

Wide lines

80px

38px

21px

19px

16px

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

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

⚠️ Wide lines: ~77 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

GGoogle FontsFlesch 31

Color Palette

5 unique colors

5.96:1 AA Dark

#000000

Background· 45.9%

#85898d

Other· 5%

#090f14

Secondary· 26.9%

#172029

Primary· 14.8%

Business & Marketing Stack

6 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

diffractionlimited.com(7)google-analytics.com(3)cdn2l.ink(2)snap.licdn.com(2)gstatic.com(1)

Website Identity

$Diffraction Limited$

Diffraction Limited

Organization

Astronomy & Scientific Imaging Solutions

diffractionlimited.com/

30 years old

Location detected: 🇨🇦 Canadavia ip

Network Solutions, LLCen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 29 May 2026 at 19:56

Historical Analysis & Change Tracking