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

deadline.com

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

Export

deadline.com

Mobile

Sponsored

Hosting Provider

Automattic, Inc

IP Address

192.0.66.32

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Server

Nginx

CDN

Nameservers

ns-128.awsdns-16.com.ns-1392.awsdns-46.org.ns-1943.awsdns-50.co.uk.ns-976.awsdns-58.net.

Performance

Page Speed

610 KB

110 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Automattic, Inc

CDN

Detected API Sources

https://cdn.tinypass.com/api/t...

Technology Stack

17 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Hotjar

Plugins

Pmc Plugins Onesignal Free Web Push Notifications

Jetpack

Libraries

jQuery

Underscore.js

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Advertising

CSS Frameworks

Tag Managers

Web Servers

Customer Support

Security

SEO Analysis

A82/100

deadline.comdeadline.com

Deadline – Hollywood Entertainment Breaking News

Deadline.com is always the first to break up-to-the-minute entertainment, Hollywood and media news, with an unfiltered, no-holds-barred analysis of events.

Title Length48 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (36/54)

2 issues found

Upgrade to view details

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

29d

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-security-policy

upgrade-insecure-requests, frame-ancestors 'self'

content-security-policy-report-only

default-src data: 'unsafe-inline' 'unsafe-eval' https: blob:...

content-type

text/html; charset=UTF-8

Good Warning Issue

Typography & Readability

Balto

58/100

Readability

/30

12/40

12px · LH 1.35

Hierarchy

/20

25/25

2.67x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Balto

Sans32px

Body Font

Balto

Sans12px

Contrast Ratio

Reading Comfort

~51 CPL

Optimal (45–75)

32px

12px

16px

14px

12px

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

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

✅ Good performance: Using 1 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.

✅ Optimal line length: ~51 characters per line is comfortable to read.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

deadline.com(13)googletagmanager.com(2)geolocation.onetrust.com(1)s3-us-west-2.amazonaws.com(1)toolforthought.com(1)

Website Identity

deadline.com

Sponsored

Last analyzed: 11 Feb 2026 at 06:29

Historical Analysis & Change Tracking