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

nsa.gov

https://nsa.gov· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

nsa.gov

Mobile

Sponsored

Hosting Provider

Akamai International, BV

IP Address

104.102.63.65

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16625

Organization

Akamai International, BV

Nameservers

a1-107.akam.net.a11-66.akam.net.a5-66.akam.net.a12-67.akam.net.+2 more

Performance

Page Speed

1.5 MB

83 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

DNN (DotNetNuke)

Infrastructure

Hosting

Akamai International, BV

Technology Stack

14 Technologies Detected

Libraries

Analytics

CSS Frameworks

Other

AOS (Animate On Scroll)

Icon Libraries

Fonts

CDN

Customer Support

SEO Analysis

C64/100

nsa.govnsa.gov

National Security Agency | Central Security Service

The National Security Agency/Central Security Service leads the U.S. Government in cryptology that encompasses both signals intelligence insights and cyberse...

Description truncated.

Title Length51 chars

Recommended: 50-60 chars

Description Length286 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (5/7)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

26 rules

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

24d

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

10.12.2025

Valid Until

10.03.2026

Subject Alternative Names (20)

2017dodtransition.defense.gov2025dodtransition.defense.govactuary.defense.govarmedforcessports.defense.govatsdio.defense.govbasicresearch.defense.govbusiness.defense.govcmsmedia.defense.gov+12 more

SHA-256 Fingerprint

34:BE:AC:20:3E:8E:C5:0B:26:19:83:65:32:C8:DA:FA:9F:6C:75:01...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🔴 No Cache(no-cache,private)

content-encoding

📦 Gzip(gzip)

content-length

20241

content-type

text/html; charset=utf-8

date

Fri, 13 Feb 2026 21:03:36 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (6)

w455-emsm-u10.ncsc.mil

w455-emsm-u11.ncsc.mil

emsm-gh1-uea10.ncsc.mil

sec-jeemsg.eemsg.mail.mil

+2 more

Domain Information

nsa.gov

Domain Age

28y 4m

Created

02.10.1997

Expires

19.08.2026

Last Updated

24.08.2025

Registrar

get.gov

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Teko-Bold + Roboto-Light

67/100

Readability

/30

40/40

18px · LH 1.44

Hierarchy

/20

25/25

4.45x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

14/20

System fonts

Heading Font

Teko-Bold

Sans80px

Body Font

Roboto-Light

Sans18px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

80px

72px

60px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.44 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.5x larger than body text.

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

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

⚠️ Cramped layout: 10 elements lack adequate spacing.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(15)search.usa.gov(2)use.fontawesome.com(1)dap.digitalgov.gov(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 13 Feb 2026 at 21:03

Historical Analysis & Change Tracking