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

popsci.com

https://popsci.com· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

popsci.com

Mobile

Sponsored

Hosting Provider

Automattic, Inc

IP Address

192.0.66.194

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Server

Nginx

CDN

Nameservers

ns-930.awsdns-52.net.ns-1398.awsdns-46.org.ns-1545.awsdns-01.co.uk.ns-280.awsdns-35.com.

Performance

Page Speed

1.8 MB

95 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

WordPressv6.9.1

Infrastructure

Hosting

Automattic, Inc

CDN

Technology Stack

15 Technologies Detected

Plugins

Sailthru Widget Nelio Ab Testing Pushly

Analytics

Meta Frameworks

Libraries

CSS Frameworks

Fonts

Tag Managers

Advertising

Web Servers

Security

SEO Analysis

A+94/100

popsci.compopsci.com

Popular Science | Science and Technology Stories Since 1872

Awe-inspiring science reporting, technology news, and DIY projects. Skunks to space robots, primates to climates. That's Popular Science, 152 years strong.

Title Length59 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

78d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 1800s(max-age=1800)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Wed, 11 Feb 2026 09:38:30 GMT

host-header

a9130478a60e5f9135f765b23f26593b

Good Warning Issue

Typography & Readability

Barlow Condensed + sans-serif

51/100

Readability

/30

20/40

12px · LH 1.67

Hierarchy

/20

8/25

1.33x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Barlow Condensed

Sans16px

Body Font

sans-serif

Sans12px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

16px

32px

12px

Perfect Fifth

Scale

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

✅ Optimal line spacing: 1.67 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

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

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

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

popsci.com(5)googletagmanager.com(3)cdn.privacy-mgmt.com(3)experiments.parsely.com(2)securepubads.g.doubleclick.net(2)

Website Identity

popsci.com

Sponsored

Last analyzed: 11 Feb 2026 at 09:38

Historical Analysis & Change Tracking