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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astrazeneca.com

https://astrazeneca.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

astrazeneca.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

15.197.255.153

Server Location

🇨🇦 Montreal, Canada

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Apache

CDN

CloudFront

Nameservers

dns4.comlaude-dns.eu.dns1.comlaude-dns.com.dns2.comlaude-dns.net.dns3.comlaude-dns.co.uk.

Performance

Page Speed

1.6 MB

39 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

5 Technologies Detected

Libraries

Other

CSS Frameworks

Analytics

Web Servers

SEO Analysis

A88/100

astrazeneca.comastrazeneca.com

AstraZeneca - Research-Based BioPharmaceutical Company

AstraZeneca is a global, science-led biopharmaceutical business and our innovative medicines are used by millions of patients worldwide.

Title Length54 chars

Recommended: 50-60 chars

Description Length136 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

8 rules

Sitemap reference found

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

69d

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

24.04.2025

Valid Until

24.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (10)

astrazeneca.comastrazeneca.coastrazeneca.co.jpastrazeneca.co.ukastrazeneca.com.trwww.astrazeneca.cowww.astrazeneca.co.jpwww.astrazeneca.co.uk+2 more

SHA-256 Fingerprint

1C:0C:A9:B5:26:47:7D:15:41:45:E2:35:1B:66:57:C8:75:2E:ED:48...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔵 1 Days(max-age=86400)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Sat, 14 Feb 2026 10:03:17 GMT

etag

"261e1-64ab428226b66-gzip"

Good Warning Issue

Email Infrastructure

Mimecast

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

de-smtp-inbound-1.mimecast.com

de-smtp-inbound-2.mimecast.com

Domain Information

astrazeneca.com

Domain Age

27y 2m

Created

08.12.1998

Expires

07.12.2026

Last Updated

07.11.2025

Registrar

Nom-iq Ltd. dba COM LAUDE

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Times + Helvetica Neue

60/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

3x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Times

Serif42px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

Reading Comfort

~45 CPL

Needs attention

42px

23px

16px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

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

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

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

⚠️ Cramped layout: 25 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)tags.tiqcdn.com(3)policy.cookiereports.com(2)rum.hlx.page(1)code.jquery.com(1)

Website Identity

astrazeneca.com

27 years old

Nom-iq Ltd. dba COM LAUDE📧 Mimecast

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 14 Feb 2026 at 10:03

Historical Analysis & Change Tracking