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

prisonpolicy.org

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

Export

prisonpolicy.org

Sponsored

Hosting Provider

pair Networks

IP Address

66.39.118.137

Server Location

🇺🇸 Pittsburgh, United States

ASN

AS7859

Organization

pair Networks

Server

Apache

Nameservers

ns549.pair.com.ns000.ns0.com.

Performance

Page Speed

16 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

pair Networks

Technology Stack

5 Technologies Detected

Analytics

CSS Frameworks

Web Servers

Languages

SEO Analysis

B76/100

prisonpolicy.orgprisonpolicy.org

Prison Policy Initiative

Thinktank that uses research, advocacy, and organizing to show how over-criminalization harms individuals, our communities, and the national well-being

Title Length24 chars

Recommended: 50-60 chars

Description Length151 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (6/7)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

31 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

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/2

Valid From

28.01.2025

Valid Until

28.02.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

prisonpolicy.orgwww.prisonpolicy.org

SHA-256 Fingerprint

54:9E:C6:AB:93:25:EE:A6:79:AD:F2:FF:BD:60:1E:93:47:98:BD:99...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-length

8368

content-type

text/html; charset=UTF-8

date

Fri, 20 Feb 2026 11:30:38 GMT

link

<//static.prisonpolicy.org/css/ppi_gen.css?v=takyl5>; rel=pr...

server

Apache

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

ASPMX2.GOOGLEMAIL.COM

ASPMX.L.GOOGLE.COM

ALT2.ASPMX.L.GOOGLE.COM

ALT1.ASPMX.L.GOOGLE.COM

+1 more

Domain Information

prisonpolicy.org

Domain Age

24y 6m

Created

23.08.2001

Expires

23.08.2026

Last Updated

30.05.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Georgia

51/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

2.14x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Georgia

Serif30px

Body Font

Georgia

Serif14px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

30px

15px

22px

14px

Minor Second

Scale

⚠️ 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 2.1x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

4 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.prisonpolicy.org(1)js.createsend1.com(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

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Last analyzed: 20 Feb 2026 at 11:30

Historical Analysis & Change Tracking