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

sciencefriday.com

https://sciencefriday.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

sciencefriday.com

Sponsored

Hosting Provider

Automattic, Inc

IP Address

192.0.66.112

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Server

Nginx

CDN

Nameservers

rick.ns.cloudflare.com.dorthy.ns.cloudflare.com.

Performance

Page Speed

988 KB

66 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.1

cms

sciencefridayv1.0.0

by Blue Cadet Interactive

View Theme

Technology Stack

19 Technologies Detected

Plugins

Webtoffee Gdpr Cookie Consent Wp Parsely Search Filter Pro

Analytics

Libraries

Frameworks

Meta Frameworks

UI Components

CSS Frameworks

Tag Managers

Advertising

Web Servers

Email Marketing

Marketing

SEO Analysis

B76/100

sciencefriday.comsciencefriday.com

Science Friday

Science Friday is the source for entertaining and educational stories about science, technology, and other cool stuff.

Title Length14 chars

Recommended: 50-60 chars

Description Length118 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (24/44)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

76d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.02.2026

Valid Until

07.05.2026

Subject Alternative Names (2)

sciencefriday.comwww.sciencefriday.com

SHA-256 Fingerprint

8B:CF:09:2D:84:C9:0B:6D:08:87:63:2E:B9:83:CF:DB:35:BE:7F:9C...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 300s(max-age=300, must-revalidate)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 10:02:38 GMT

host-header

a9130478a60e5f9135f765b23f26593b

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx2.googlemail.com

aspmx3.googlemail.com

aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

sciencefriday.com

Domain Age

30 years

Created

21.02.1996

Expires

22.02.2029

Last Updated

15.08.2023

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Proxima Nova W01 Alternate

51/100

Readability

/30

32/40

16px · LH 1.90

Hierarchy

/20

18/25

2.25x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Proxima Nova W01 Alternate

Sans36px

Body Font

Proxima Nova W01 Alternate

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

36px

26px

27px

20px

16px

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

✅ Strong hierarchy: Headlines are 2.2x 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.

⚠️ Cramped layout: 39 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

sciencefriday.com(6)connect.facebook.net(4)googletagmanager.com(4)google-analytics.com(1)googletagservices.com(1)

Website Identity

sciencefriday.com

30 years old

GoDaddy.com, LLC📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram LinkedIn TikTok Threads Bluesky

Sponsored

Last analyzed: 19 Feb 2026 at 10:02

Historical Analysis & Change Tracking