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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ncjrs.gov

https://ncjrs.gov· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

ncjrs.gov

Sponsored

Hosting Provider

U. S. Department of Justice

IP Address

149.101.127.44

Server Location

🇺🇸 Atlanta, United States

ASN

AS15130

Organization

U. S. Department of Justice

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

novalee.ns.cloudflare.com.jonah.ns.cloudflare.com.

Performance

Page Speed

1.3 MB

76 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

U. S. Department of Justice

CDN

Cloudflare

Technology Stack

6 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

CDN

SEO Analysis

B76/100

ncjrs.govncjrs.gov

New OJP Resources | Office of Justice Programs

See what's new from the Office of Justice Programs.

Title Length46 chars

Recommended: 50-60 chars

Description Length51 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

51 rules

Sitemap reference found

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

176d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.07.2025

Valid Until

14.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.ojp.govojp.gov

SHA-256 Fingerprint

61:72:40:0C:BB:2D:EF:BC:13:E9:F5:9F:4E:4F:89:4E:C5:C6:A7:26...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 1 Hours(public, max-age=3600)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9d0622d8295368eb-FRA

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx-da6.usdoj.gov

mx-dc2.usdoj.gov

Domain Information

ncjrs.gov

Domain Age

20y 5m

Created

30.08.2005

Expires

21.08.2026

Last Updated

26.08.2025

Registrar

get.gov

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Merriweather Web + Roboto

48/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

18/25

4.33x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Merriweather Web

Sans52px

Body Font

Roboto

Sans12px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

52px

30px

24px

16px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.3x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)googletagmanager.com(4)google-analytics.com(1)cse.google.com(1)google.com(1)

Website Identity

Facebook X (Twitter)YouTube Pinterest

Sponsored

Last analyzed: 19 Feb 2026 at 13:33

Historical Analysis & Change Tracking