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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bankofengland.co.uk

https://bankofengland.co.uk· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

bankofengland.co.uk

Mobile

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

172.187.114.64

Server Location

🇬🇧 City of London, United Kingdom

ASN

AS8075

Organization

Microsoft Azure Cloud (uksouth)

Server

Microsoft IIS

CDN

Akamai

WAF

Akamai

Nameservers

auth40.ns.uu.net.auth20.ns.wcom.com.auth0030.ns.eu.uu.net.auth0020.ns.eu.uu.net.

Performance

Page Speed

650 KB

17 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Microsoft Azure

CDN

Akamai

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

6 Technologies Detected

Libraries

CSS Frameworks

Analytics

Tag Managers

Web Servers

Customer Support

SEO Analysis

B70/100

bankofengland.co.ukbankofengland.co.uk

Home | Bank of England

The Bank of England (BoE) is the UK's central bank. Our mission is to deliver monetary and financial stability for the people of the United Kingdom.

Title Length22 chars

Recommended: 50-60 chars

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (3/5)

3 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

13 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

50d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.04.2025

Valid Until

04.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (14)

www.bankofengland.co.ukbankofengland.co.ukcollateraldata-pp.bankofengland.co.ukcollateraldata.bankofengland.co.ukedu.bankofengland.co.ukextranet1.bankofengland.co.ukextranet2.bankofengland.co.ukrtgsbi-pp.bankofengland.co.uk+6 more

SHA-256 Fingerprint

1B:0C:85:46:FE:B2:E3:A4:C5:CE:53:74:93:39:1D:A3:B7:19:F9:68...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-expose-headers

Request-Context

cache-control

🟡 15s(max-age=15)

content-encoding

📦 Gzip(gzip)

content-length

14581

content-type

text/html; charset=utf-8

date

Fri, 13 Feb 2026 04:28:41 GMT

Good Warning Issue

Email Infrastructure

Mimecast

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

eu-smtp-inbound-1.mimecast.com

eu-smtp-inbound-2.mimecast.com

Domain Information

bankofengland.co.uk

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

Data Protection Officer mentioned

Typography & Readability

GilroyForBOE + Arial

86/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

18/25

3.3x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

GilroyForBOE

Sans59px

Body Font

Arial

Sans18px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

59px

36px

23px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.3x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Protected text on images: Using text-shadow for readability.

⚠️ Cramped layout: 19 elements lack adequate spacing.

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Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)

Website Identity

bankofengland.co.uk

📧 Mimecast

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok Threads

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Last analyzed: 13 Feb 2026 at 04:29

Historical Analysis & Change Tracking