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

observer.com

https://observer.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

observer.com

Mobile

Sponsored

Hosting Provider

Automattic, Inc

IP Address

192.0.66.160

Server Location

🇺🇸 San Francisco, United States

ASN

AS2635

Server

Nginx

CDN

Nameservers

ns2.wordpress.com.ns1.wordpress.com.ns3.wordpress.com.

Performance

Page Speed

852 KB

169 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Automattic, Inc

CDN

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

https://cdn.id5-sync.com/api/1...

Technology Stack

26 Technologies Detected

Plugins

Media Credit Lasso

Amp Google Tag Manager

Sailthru Widget Observer Block Editor Hc Sailthru Xcurrent

Analytics

Advertising

Google Ads Criteo Outbrain

Icon Libraries

Font Awesome Material Icons

Frameworks

Meta Frameworks

Libraries

CSS Frameworks

Fonts

Tag Managers

Payments

Web Servers

SEO Analysis

B76/100

observer.comobserver.com

News, data and insight about the powerful forces that shape the wor...

News, data and insight about the powerful forces that shape the world.

Title truncated.

Title Length81 chars

Recommended: 50-60 chars

Description Length70 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

7,602 URLs

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

37d

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

22.12.2025

Valid Until

22.03.2026

Subject Alternative Names (2)

observer.comwww.observer.com

SHA-256 Fingerprint

07:F4:F3:AD:F7:3F:90:30:18:F1:D7:66:84:8E:B9:D9:C9:30:CA:80...

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, 12 Feb 2026 12:38:03 GMT

host-header

a9130478a60e5f9135f765b23f26593b

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt2.aspmx.l.google.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

observer.com

Domain Age

31y 10m

Created

23.04.1994

Expires

03.02.2027

Last Updated

04.02.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Legitimate interest basis mentioned

Typography & Readability

Open Sans + sans-serif

50/100

Readability

/30

12/40

12px · LH 1.20

Hierarchy

/20

15/25

1.46x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Open Sans

Sans18px

Body Font

sans-serif

Sans12px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

18px

36px

20px

12px

Perfect Fourth

Scale

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

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

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

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

✅ Optimal line length: ~45 characters per line is comfortable to read.

⚠️ Cramped layout: 52 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

HotjarMid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

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

google-analytics.com(3)connect.facebook.net(3)sb.scorecardresearch.com(2)sandbox.tinypass.com(2)cdn.id5-sync.com(1)

Website Identity

observer.com

31 years old

GoDaddy.com, LLC📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 12 Feb 2026 at 12:38

Historical Analysis & Change Tracking