drg.ac.uk

https://drg.ac.uk· First analyzed 14 May 2026· Updated 14 May 2026

Export

drg.ac.uk

Mobile

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Hosting Provider

DigitalOcean

digitalocean.com

IP Address

138.68.169.221

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 Slough, United Kingdom

ASN

AS14061

Organization

DigitalOcean, LLC

Server

Nginx

Nameservers

acheron.shef.ac.uk.hippo.shef.ac.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

476 ms10%

Speed Index

619 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

774 KB

24 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

DigitalOcean

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

12 Technologies Detected

Libraries

CSS Frameworks

Analytics

UI Components

Other

Other

Icon Libraries

Fonts

Web Servers

SEO Analysis

D57/100

Meta Tags10/15

Content6/12

Headings3/8

Technical13/25

E-E-A-T3/7

Images1/7

Links4/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

drg.ac.ukdrg.ac.uk

Home | Dynamics Research Group

The DRG conducts research into vibrations and the dynamics of structures.

Title Length30 chars

Recommended: 50-60 chars (~190px / 580px)

Description Length73 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (3/5) — critical for accessibility and SEO

10 issues found

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Crawlability

Sitemap

robots.txt

1 rules

Allows all crawlers

Local SEO

Local Search Readiness

10/100

Poor

3 12 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.

5/25

Schema Data

0/25

Citation

15/25

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

navheader/footer

Text ratio:7%

Words:91

Token eff.:Too Short

Sections/1K:30

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary31w

Descriptive Headingsavg 5.7w

Canonical URL

Open Graph3/3

Twitter Card3/3

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.

62/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

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.

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.

70/100

78 mg

CO₂e / view

774.4 KB

Page Weight

80%

Cleaner Than

New Visitor

89 mg

Returning (cached)

45 mg

Annual (10K/mo)

9.4 kg

Emission Segments

Data Center

4 mg

Network

23 mg

Device

51 mg

Resource Breakdown

JavaScript

62.4 KB

Images

686.6 KB

CSS

21.4 KB

Fonts

1002 B

HTML

3.0 KB

Green Hosting Verified

DigitalOcean

Provider Match

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

42d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

27.03.2026

Valid Until

25.06.2026

Subject Alternative Names (2)

drg.ac.ukwww.drg.ac.uk

SHA-256 Fingerprint

22:92:33:0A:A0:C9:82:D2:9C:78:DF:EB:C4:FA:20:4E:6B:80:8F:A9...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 14 May 2026 09:51:11 GMT

expires

Mon, 26 Jul 1997 05:00:00 GMT

last-modified

Thu, 14 May 2026 09:51:11 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

aspmx3.googlemail.com

alt2.aspmx.l.google.com

aspmx.l.google.com

aspmx2.googlemail.com

+1 more

Domain Information

drg.ac.uk

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

68/100

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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Nunito Sans

WCAG AAA

77/100

Readability

/30

25/30

24px · LH 1.40

Hierarchy

/20

10/20

1.42x ratio

WCAG

/25

24/25

21:1 min contrast

Performance

/25

18/25

1 font · 1 req

Heading Font

Nunito Sans

Sans34px

Body Font

Nunito Sans

Sans24px

Contrast Ratio

21:1

WCAG AAA (≥7:1)

Reading Comfort

~37 CPL

Narrow lines

34px

20px

24px

✅ Excellent readability: 24px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 37/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 21.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

GGoogle FontsFlesch 37

Color Palette

6 unique colors

13.14:1 AAA Light

#ffffff

Primary· 84.5%

#313031

Other· 1.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)cdnjs.cloudflare.com(1)ajax.googleapis.com(1)code.jquery.com(1)googletagmanager.com(1)

Website Identity

drg.ac.uk

info@drg.ac.uk

Location detected: 🇬🇧 United Kingdomvia tld

📧 Google Workspaceen

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Last analyzed: 14 May 2026 at 09:51

Historical Analysis & Change Tracking