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

care2.com

https://care2.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

care2.com

Mobile

Sponsored

Hosting Provider

Cogent communications - IPENG

IP Address

38.99.122.16

Server Location

🇺🇸 San Jose, United States

ASN

AS174

Organization

Cogent communications - IPENG

Server

Apache

CDN

Nameservers

ns-50.awsdns-06.com.ns-684.awsdns-21.net.ns-1522.awsdns-62.org.ns-1701.awsdns-20.co.uk.

Performance

Page Speed

4 KB

40 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Other

VWO

Web Servers

Apachev2.4.37

SEO Analysis

F35/100

care2.comcare2.com

Care2 is the world's largest social network for good, a community o...

Largest online community empowering people to lead a healthy and green lifestyle while taking action on important causes such as human rights, animal welfare...

Title truncated. Description truncated.

Title Length170 chars

Recommended: 50-60 chars

Description Length177 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (60/60)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

41 rules

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

70d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.01.2026

Valid Until

26.04.2026

Subject Alternative Names (2)

*.care2.comcare2.com

SHA-256 Fingerprint

23:1B:CB:DF:A0:75:45:B4:BD:CA:14:44:2C:9B:3C:B0:D7:70:2F:DC...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self' https://www.care2.com https://www.the...

content-type

text/html; charset=UTF-8

date

Sun, 15 Feb 2026 06:55:16 GMT

server

Apache/2.4.37 (Rocky Linux) OpenSSL/1.1.1k

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail.care2.com

Domain Information

care2.com

Domain Age

27y 1m

Created

30.12.1998

Expires

14.01.2027

Last Updated

10.12.2025

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Arial

61/100

Readability

/30

32/40

42px · LH 1.30

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Arial

Sans

Body Font

Arial

Sans42px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

18px

42px

✅ Excellent readability: 42px 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.

⚠️ Cramped layout: 11 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

AdRollMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

LinkedIn WidgetsFree

Facebook SDKFree

Social widgets and sharing tools

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

s.adroll.com(3)platform.twitter.com(2)dev.visualwebsiteoptimizer.com(1)linkedin.com(1)d.adroll.com(1)

Website Identity

Facebook

Sponsored

Last analyzed: 15 Feb 2026 at 06:55

Historical Analysis & Change Tracking