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.

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northumbria.ac.uk

https://northumbria.ac.uk· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

northumbria.ac.uk

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Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

13.74.188.238

Server Location

🇮🇪 Dublin, Ireland

ASN

AS8075

Organization

Microsoft Azure Cloud (northeurope)

Server

Microsoft IIS

Nameservers

edns2.northumbria.ac.uk.edns1.northumbria.ac.uk.

Performance

Page Speed

505 KB

36 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Sitecore

Technology Stack

7 Technologies Detected

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Libraries

CSS Frameworks

Analytics

Tag Managers

Web Servers

SEO Analysis

B72/100

northumbria.ac.uknorthumbria.ac.uk

Northumbria University | Uni Courses | Study in the Best Student City

With an expanding multicultural learning community, Northumbria (University of the Year 2022), in Newcastle upon Tyne, is a UK Top 25 university for Research...

Description truncated.

Title Length69 chars

Recommended: 50-60 chars

Description Length178 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

3 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

16 rules

Sitemap reference found

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

45d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

03.03.2025

Valid Until

04.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (14)

northumbria.ac.ukcorp.northumbria.ac.ukcorp10-processing.northumbria.ac.ukcorp-ca.northumbria.ac.ukcovid.northumbria.ac.ukcovid-ca.northumbria.ac.ukxc10-corp-collection.northumbria.ac.ukxc10-corp-collection-search.northumbria.ac.uk+6 more

SHA-256 Fingerprint

51:74:B3:71:3C:F5:2D:E6:19:6A:28:7F:1F:07:BF:67:48:BD:F7:1A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ch

Sec-CH-UA-Full-Version-List,Sec-CH-UA-Platform-Version,Sec-C...

cache-control

🟣 Private(private)

content-length

234818

content-type

text/html; charset=utf-8

date

Wed, 18 Feb 2026 02:41:28 GMT

server

Microsoft-IIS/10.0

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

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

Domain Information

northumbria.ac.uk

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

azo-sans-web + sans-serif

41/100

Readability

/30

32/40

16px · LH 1.20

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

azo-sans-web

Sans

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

20px

16px

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

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 10 elements lack adequate spacing.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

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Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)cookie-cdn.cookiepro.com(1)code.jquery.com(1)cdn.jsdelivr.net(1)assets.pixlee.com(1)

Website Identity

Facebook X (Twitter)Instagram TikTok Pinterest

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Last analyzed: 18 Feb 2026 at 02:41

Historical Analysis & Change Tracking