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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cartercenter.org

https://cartercenter.org· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

cartercenter.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.20.38.84

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

CDN

Nameservers

olof.ns.cloudflare.com.christina.ns.cloudflare.com.

Performance

Page Speed

674 KB

55 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Heliotropev1.0.0

by Wide Eye

View Theme

Technology Stack

15 Technologies Detected

Plugins

W3 Total Cache

App_Service_Email Tcc Map Wec Personalization

Yoast SEO

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Segment

Libraries

UI Components

CSS Frameworks

Tag Managers

Languages

SEO Analysis

B76/100

cartercenter.orgcartercenter.org

Waging Peace. Fighting Disease. Building Hope. - The Carter Center

For over 40 years, The Carter Center has boldly tackled humanity's toughest challenges. Our peace and health programs partner with communities worldwide to c...

Description truncated.

Title Length66 chars

Recommended: 50-60 chars

Description Length204 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

10 URLs

robots.txt

3 rules

Allows all crawlers

Sponsored

Security Score

66%Fair

Interactive

HTTPS

No WAF

53d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

12.11.2025

Valid Until

14.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.cartercenter.org

SHA-256 Fingerprint

B2:40:3B:73:51:02:30:CC:98:FD:9A:98:8A:F4:70:C0:EB:ED:2A:8D...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 3200s(max-age=3200, public)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Fri, 20 Feb 2026 08:31:24 GMT

etag

"bcdce2b2d9a1fa066dc0fa3a471fd284"

expires

Fri, 20 Feb 2026 08:32:45 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

cartercenter-org.mail.protection.outlook.com

Domain Information

cartercenter.org

Domain Age

27y 9m

Created

29.05.1998

Expires

28.05.2028

Last Updated

12.11.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Denim

73/100

Readability

/30

32/40

18px · LH 1.32

Hierarchy

/20

18/25

4.44x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Denim

Sans80px

Body Font

Denim

Sans18px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

80px

18px

20px

18px

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

✅ Strong hierarchy: Headlines are 4.4x larger than body text.

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

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

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

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cartercenter.org(5)a.plerdy.com(4)connect.facebook.net(3)youtube.com(2)google-analytics.com(2)

Website Identity

Facebook Instagram LinkedIn YouTube Bluesky

Sponsored

Last analyzed: 20 Feb 2026 at 08:31

Historical Analysis & Change Tracking