mirbase.org

https://mirbase.org· First analyzed 20 May 2026· Updated 20 May 2026

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mirbase.org

Mobile

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Hosting Provider

The University of Manchester

IP Address

130.88.97.249

Site Location

🇬🇧 United Kingdomvia ip

Server Location

🇬🇧 Manchester, United Kingdom

ASN

AS786

Organization

The University of Manchester

Server

Apache

Nameservers

ns1.manchester.ac.uk.ns2.manchester.ac.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

286 ms10%

Speed Index

372 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

239 KB

21 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

The University of Manchester

Technology Stack

7 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Web Servers

SEO Analysis

D45/100

Meta Tags4/15

Content10/12

Headings3/8

Technical11/21

E-E-A-T0/7

Images2/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

mirbase.orgmirbase.org

miRBase

No description available for this page.

Title Length7 chars

Recommended: 50-60 chars (~44px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

13 issues found

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Local SEO

Local Search Readiness

5/100

Poor

2 13 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

F38/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

10/25

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:10%

Words:777

Token eff.:Optimal

Sections/1K:5.1

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary27w

Descriptive Headingsavg 5.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

46/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

9/20

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

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.

5 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.

51/100

A+

30 mg

CO₂e / view

239.5 KB

Page Weight

95%

Cleaner Than

New Visitor

34 mg

Returning (cached)

17 mg

Annual (10K/mo)

3.6 kg

Emission Segments

Data Center

7 mg

Network

7 mg

Device

16 mg

Resource Breakdown

JavaScript

108.0 KB

Images

115.5 KB

CSS

4.2 KB

HTML

11.8 KB

Green Hosting Not Verified

The University of Manchester

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

64%Fair

Interactive

HTTPS

No WAF

30d

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/1.1

Valid From

21.03.2026

Valid Until

19.06.2026

Subject Alternative Names (2)

mirbase.orgwww.mirbase.org

SHA-256 Fingerprint

6B:7B:B9:91:4D:A1:49:CC:0B:D8:AA:9E:78:01:A4:1B:05:EF:4A:34...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

date

Wed, 20 May 2026 00:29:10 GMT

keep-alive

timeout=5, max=100

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

Domain Information

mirbase.org

Domain Age

20y 3m

Created

13.02.2006

Expires

13.02.2028

Last Updated

17.02.2026

Registrar

eNom, LLC

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.

67/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Arial

WCAG Partial

58/100

Readability

/30

20/30

16px · LH --

Hierarchy

/20

6/20

WCAG

/25

12/25

1.86:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Arial

Sans

Body Font

Arial

Sans16px

Contrast Ratio

1.86:1

1 issue

Reading Comfort

~38 CPL

Narrow lines

24px

19px

16px

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.9:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Flesch 0

Color Palette

6 unique colors

2.49:1 Fail Light

#ffffff

Background· 69.9%

#a3a4a7

Other· 2.2%

#040562

Primary· 23.6%

#4c4e74

Secondary· 1.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.datatables.net(3)local(2)googletagmanager.com(1)code.jquery.com(1)rnacentral.github.io(1)

Website Identity

mirbase.org

mirbase@manchester.ac.uk

20 years old

Location detected: 🇬🇧 United Kingdomvia ip

eNom, LLCen

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Last analyzed: 20 May 2026 at 00:29

Historical Analysis & Change Tracking