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

easychair.org

https://easychair.org· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

easychair.org

Mobile

Sponsored

Hosting Provider

Contabo

contabo.com

IP Address

213.136.76.235

Server Location

🇫🇷 Lauterbourg, France

ASN

AS51167

Organization

Contabo GmbH

Server

Apache

Nameservers

ns11.domaincontrol.com.ns12.domaincontrol.com.

Performance

Page Speed

953 KB

62 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Contabo

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Apachev2.4.41

SEO Analysis

D41/100

easychair.orgeasychair.org

EasyChair Home Page

EasyChair - conference system

Title Length19 chars

Recommended: 50-60 chars

Description Length29 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (43/52)

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

9 rules

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

No WAF

150d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

11.09.2025

Valid Until

14.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.easychair.orgeasychair.org

SHA-256 Fingerprint

1E:A0:D8:DF:5A:5A:CA:E7:4A:A7:C9:0F:16:21:1F:E8:00:A8:BD:6B...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

content-encoding

📦 Gzip(gzip)

content-length

5712

content-type

text/html; charset=UTF-8

date

Sat, 14 Feb 2026 23:58:05 GMT

expires

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.easychair.org

Domain Information

easychair.org

Domain Age

21y 2m

Created

14.12.2004

Expires

14.12.2034

Last Updated

01.09.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Open Sans + Verdana

55/100

Readability

/30

32/40

14px · LH 1.45

Hierarchy

/20

25/25

3.6x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Open Sans

Sans52px

Body Font

Verdana

Sans14px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

52px

20px

17px

14px

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

✅ Optimal line spacing: 1.45 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.6x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

⚠️ Cramped layout: 9 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)

Website Identity

X (Twitter)LinkedIn

Sponsored

Last analyzed: 14 Feb 2026 at 23:58

Historical Analysis & Change Tracking