sothebysinstitute.com

https://sothebysinstitute.com· First analyzed 17 May 2026· Updated 17 May 2026

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Mobile

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Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

100.55.166.105

Site Location

🇬🇧 United Kingdomvia phone

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Apache

Nameservers

ns-136.awsdns-17.com.ns-1415.awsdns-48.org.ns-1890.awsdns-44.co.uk.ns-550.awsdns-04.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

611 ms10%

Speed Index

794 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

346 KB

34 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

SIAv1.0Custom

by BrandEd

View Theme

Progressive Web App

Web ManifestTheme Color

Technology Stack

7 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Advertising

Microsoft Advertising

Web Servers

Apache

SEO Analysis

C66/100

Meta Tags5/15

Content11/12

Headings8/8

Technical19/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile3/4

Indexability3/3

sothebysinstitute.comsothebysinstitute.com

Sotheby's Institute of Art

Educating Tomorrow's Art World and Luxury Leaders

Title Length26 chars

Recommended: 50-60 chars (~154px / 580px)

Description Length49 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (18/18) — critical for accessibility and SEO

8 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

22 rules

Sitemap reference found

Local SEO

Local Search Readiness

16/100

Poor

5 11 2

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

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AI & LLM Readiness

D52/100

Bot Access

22/25

Machine Read.

13/25

Schema Data

0/25

Citation

17/25

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:7%

Words:1,452

Token eff.:Optimal

Sections/1K:8.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary23w

Descriptive Headingsavg 7.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

AI readiness recommendation preview...

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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.

76/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

20/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

2/15

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

11/15

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

ARIA & Roles

8/15

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

2 recommendations

•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.

75/100

A+

35 mg

CO₂e / view

346.1 KB

Page Weight

90%

Cleaner Than

New Visitor

40 mg

Returning (cached)

20 mg

Annual (10K/mo)

4.2 kg

Emission Segments

Data Center

2 mg

Network

10 mg

Device

23 mg

Resource Breakdown

JavaScript

3.9 KB

Images

230.3 KB

CSS

96.1 KB

HTML

13.4 KB

Other

2.5 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

125d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.08.2025

Valid Until

19.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

sothebysinstitute.com*.sothebysinstitute.comwww.sothebysinstitute.com

SHA-256 Fingerprint

99:DB:FE:13:DB:55:F7:B5:42:49:BC:C8:55:FB:1F:D0:12:EC:B1:28...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-length

13377

content-type

text/html; charset=UTF-8

date

Sun, 17 May 2026 11:19:48 GMT

link

<https://sothebysinstitute.com/>; rel=shortlink

server

Apache

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

sothebysinstitute-com.mail.protection.outlook.com

Domain Information

sothebysinstitute.com

Domain Age

20y 11m

Created

20.06.2005

Expires

20.06.2027

Last Updated

20.04.2026

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

Privacy & Compliance

iubenda

Cookie Consent Banner

iubenda

GDPR Indicators

Cookie consent banner detected

CMP: iubenda

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.

83/100

Mobile Friendly28 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, minimum-scale=1

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Mercury Display + Benton Sans

WCAG Partial

78/100

Readability

/30

20/30

16px · LH 1.50

Hierarchy

/20

18/20

4.5x ratio · ✓ H1→H6

WCAG

/25

20/25

1:1 min contrast

Performance

/25

20/25

2 fonts · 2 req

Heading Font

Mercury Display

Sans72px

Body Font

Benton Sans

Sans16px

Contrast Ratio

1:1

1 issue

Reading Comfort

~38 CPL

Narrow lines

72px

57px

40px

16px

✅ 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 3/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 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 4.5x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 3

Color Palette

9 unique colors

12.11:1 AAA Dark

#000000

Background· 33.199999999999996%

#c2c5c7

Other· 2.5%

#ffffff

Primary· 0%

#17191f

Secondary· 28.8%

#443d37

Secondary· 9.1%

#51768c

Secondary· 6.7%

#48555b

Secondary· 1.2%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

IubendaSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)cdn.iubenda.com(3)bat.bing.com(1)cs.iubenda.com(1)scripts.clarity.ms(1)

Website Identity

sothebysinstitute.com

admissions@sia.edu

+44 (0)20 7462 3232

20 years old

Location detected: 🇬🇧 United Kingdomvia phone

Tucows Domains Inc.📧 Microsoft 365en

Social Profiles

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 17 May 2026 at 11:20

Historical Analysis & Change Tracking