What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

wellcome.ac.uk

https://wellcome.ac.uk· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

wellcome.ac.uk

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Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.246.174.210

Server Location

🇮🇪 Dublin, Ireland

ASN

AS16509

Organization

AWS EC2 (eu-west-1)

Server

Nginx

CDN

CloudFront

Nameservers

ns-1604.awsdns-08.co.uk.ns-219.awsdns-27.com.ns-638.awsdns-15.net.ns-1334.awsdns-38.org.

Performance

Page Speed

1.4 MB

44 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

CMS

Drupal

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Technology Stack

5 Technologies Detected

Meta Frameworks

CSS Frameworks

Analytics

Tag Managers

Web Servers

SEO Analysis

B72/100

wellcome.ac.ukwellcome.ac.uk

Home | Wellcome

Wellcome supports discovery research into life, health and wellbeing, and we’re taking on three worldwide health challenges: mental health, climate and healt...

Description truncated.

Title Length15 chars

Recommended: 50-60 chars

Description Length183 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (9/9)

3 issues found

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Crawlability

Sitemap

Type: index

2 URLs

robots.txt

72 rules

Sitemap reference found

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Security Score

46%Poor

Interactive

HTTPS

No WAF

139d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.07.2025

Valid Until

09.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (9)

wellcome.orgcms.wellcome.orgmosaicscience.comprod.frontend-wellcome.orgwellcome.ac.ukwellcomebookprize.orgwww.mosaicscience.comwww.wellcome.ac.uk+1 more

SHA-256 Fingerprint

0C:92:40:57:51:66:7E:C2:8A:07:42:AC:69:54:08:93:7B:7B:7F:D9...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

458

cache-control

🟡 120s(public, max-age=120, s-maxage=300, stale-while-revalidate=86...)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 09:35:02 GMT

etag

W/"83ain5kqt63eme"

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

wellcome-ac-uk.mail.protection.outlook.com

Domain Information

wellcome.ac.uk

DNSSEC

Not Enabled

Privacy & Compliance

Civic Cookie Control

Cookie Consent Banner

Civic Cookie Control

GDPR Indicators

Cookie consent banner detected

CMP: Civic Cookie Control

Typography & Readability

Wellcome + Inter

88/100

Readability

/30

40/40

17px · LH 1.50

Hierarchy

/20

25/25

2.95x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Wellcome

Sans50px

Body Font

Inter

Sans17px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

50px

29px

24px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

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Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)unpkg.com(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok Bluesky

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Last analyzed: 20 Feb 2026 at 09:42

Historical Analysis & Change Tracking