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

synopsys.com

https://synopsys.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

synopsys.com

Mobile

Sponsored

Hosting Provider

Synopsys Inc

IP Address

149.117.73.34

Server Location

🇺🇸 Sunnyvale, United States

ASN

AS397635

Organization

Synopsys Inc

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

exdns4.synopsys.com.exdns1.synopsys.com.exdns2.synopsys.com.exdns3.synopsys.com.

Performance

Page Speed

733 KB

89 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

Adobe Experience Manager

Infrastructure

Hosting

Synopsys Inc

CDN

Cloudflare

Technology Stack

8 Technologies Detected

Analytics

Google Analytics

Crazy Egg

Advertising

Google Ads Twitter Ads

Libraries

CSS Frameworks

Icon Libraries

CDN

SEO Analysis

B70/100

synopsys.comsynopsys.com

Synopsys | EDA Tools, Semiconductor IP & Systems Verification

Synopsys is a valued partner for global silicon to systems design across a wide range of vertical markets, empowering technology innovators everywhere with t...

Description truncated.

Title Length61 chars

Recommended: 50-60 chars

Description Length212 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

9 rules

Sitemap reference found

Sponsored

Security Score

66%Fair

Interactive

HTTPS

WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

23.12.2025

Valid Until

23.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.synopsys.com*.www.synopsys.com

SHA-256 Fingerprint

57:F1:F6:AA:B0:85:41:B2:99:72:03:CE:68:EB:48:0D:BF:5A:77:48...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

1186

alt-svc

h3=":443"; ma=86400

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9ce28205bbe1566a-FRA

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxa-00230701.gslb.pphosted.com

mxb-00230701.gslb.pphosted.com

Domain Information

synopsys.com

Domain Age

36y 8m

Created

27.06.1989

Expires

26.06.2026

Last Updated

22.06.2024

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Roboto + Helvetica

78/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

4.29x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans60px

Body Font

Helvetica

Sans14px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

60px

16px

20px

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 4.3x larger than body text.

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

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

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Twitter/X AdsMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)assets.adobedtm.com(4)rum.hlx.page(1)synopsys.com(1)static.ads-twitter.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 15 Feb 2026 at 05:47

Historical Analysis & Change Tracking