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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ashrae.org

https://ashrae.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

ashrae.org

Sponsored

Hosting Provider

Sucuri

IP Address

192.124.249.183

Server Location

🇺🇸 Menifee, United States

ASN

AS30148

Organization

Sucuri

Server

Sucuri/Cloudproxy

CDN

Sucuri

WAF

Sucuri

Nameservers

pdns06.domaincontrol.com.pdns05.domaincontrol.com.

Performance

Page Speed

345 KB

95 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Sucuri

CDN

Sucuri

Technology Stack

11 Technologies Detected

Libraries

Analytics

CSS Frameworks

Fonts

Adobe Fonts (Typekit)

Tag Managers

Advertising

Social

Security

Customer Support

SEO Analysis

D41/100

ashrae.orgashrae.org

Home | ashrae.org

Learn more about Home at ashrae.org

Title Length17 chars

Recommended: 50-60 chars

Description Length35 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (12/18)

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

818 rules

Sitemap reference found

Sponsored

Security Score

45%Poor

Critical / Transactional

HTTPS

WAF

114d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Starfield Technologies, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

16.05.2025

Valid Until

11.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

ashrae.org

SHA-256 Fingerprint

46:B0:13:8E:2A:B0:7C:45:02:86:5E:48:9C:74:40:E7:0D:A8:C0:A3...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000

cache-control

🟣 Private(private)

content-encoding

📦 Gzip(gzip)

content-length

46941

content-security-policy

upgrade-insecure-requests;

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Barracuda

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

d6847b.ess.barracudanetworks.com

d6847a.ess.barracudanetworks.com

Domain Information

ashrae.org

Domain Age

30y 9m

Created

04.05.1995

Expires

05.05.2026

Last Updated

19.06.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Helvetica

66/100

Readability

/30

40/40

16px · LH 1.63

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~67 CPL

Optimal (45–75)

40px

20px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.62 ratio ensures comfortable reading.

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

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

✅ Optimal line length: ~67 characters per line is comfortable to read.

⚠️ Cramped layout: 28 elements lack adequate spacing.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Social Media

ShareThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)googletagmanager.com(3)ajax.googleapis.com(2)ashrae.org(1)google-analytics.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 17 Feb 2026 at 04:06

Historical Analysis & Change Tracking