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

1password.com

https://1password.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

1password.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

162.159.141.147

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1527.awsdns-62.org.ns-1850.awsdns-39.co.uk.ns-671.awsdns-19.net.ns-109.awsdns-13.com.

Performance

Page Speed

1.8 MB

91 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

JAMstack

⚙️ SSR

Decoupled

Frontend

Framework

Next.js

Styling

Tailwind CSS

API

Data Source

Headless CMS

Contentful

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

https://images.ctfassets.net/2...

Technology Stack

7 Technologies Detected

Analytics

Meta Frameworks

Other

CSS Frameworks

CDN

Email Marketing

SEO Analysis

A82/100

1password.com1password.com

Password Manager & Extended Access Management | 1Password | 1Password

More than a password manager and leader in Extended Access Management. Secure all sign-ins to every application from any device with 1Password.

Title Length70 chars

Recommended: 50-60 chars

Description Length143 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (29/55)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

10 URLs

robots.txt

3 rules

Sitemap reference found

Sponsored

Security Score

76%Good

Interactive

HTTPS

WAF

48d

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

02.01.2026

Valid Until

02.04.2026

Subject Alternative Names (2)

1password.comwww.1password.com

SHA-256 Fingerprint

C2:1E:F9:35:60:31:F9:B7:94:49:21:2B:25:83:56:61:96:55:4F:6E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

225

cache-control

🔴 No Cache(private, no-store, max-age=0, must-revalidate)

cache-status

"Netlify Durable"; fwd=bypass, "Netlify Edge"; fwd=miss, "Ne...

cdn-cache-control

public, stale-while-revalidate=259200, stale-if-error=259200

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cd43f603892dc68-FRA

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx2.googlemail.com

aspmx3.googlemail.com

+1 more

Domain Information

1password.com

Domain Age

22y 2m

Created

30.11.2003

Expires

28.03.2027

Last Updated

05.12.2017

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

agileSans

88/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

18/25

5.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

agileSans

Sans88px

Body Font

agileSans

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

88px

40px

32px

40px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 5.5x larger than body text.

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

✅ 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.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(20)

Website Identity

1password.com

22 years old

Tucows Domains Inc.📧 Google Workspace

Social Profiles

X (Twitter)Instagram LinkedIn GitHub Reddit

Sponsored

Last analyzed: 13 Feb 2026 at 12:14

Historical Analysis & Change Tracking