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.

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metlife.com

https://metlife.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

metlife.com

Sponsored

Hosting Provider

MetLife

IP Address

209.164.208.7

Server Location

🇺🇸 Ashburn, United States

ASN

AS203

Organization

MetLife

Server

Apache

CDN

CloudFront

Nameservers

a1-254.akam.net.ns2.metlife.com.a24-65.akam.net.ns3.metlife.com.+5 more

Performance

Page Speed

2.7 MB

91 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

MetLife

CDN

CloudFront

Detected API Sources

https://maps.googleapis.com/ma...

Technology Stack

5 Technologies Detected

Frameworks

Angular

Libraries

jQuery

Other

AOS (Animate On Scroll)

CSS Frameworks

Tailwind CSS

Web Servers

Apache

SEO Analysis

A+94/100

metlife.commetlife.com

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Title Length41 chars

Recommended: 50-60 chars

Description Length138 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,104 URLs

robots.txt

43 rules

Sitemap reference found

Sponsored

Security Score

65%Fair

Critical / Transactional

HTTPS

No WAF

295d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.12.2025

Valid Until

09.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

author.metlife.comwww.metlifemas.com.mxwww.metlife.egau-gssp.prv.metlife.comassets.services.metlife.comapac.investments.prv.metlife.comdevelopers.prv.metlife.comdam.metlife.com+12 more

SHA-256 Fingerprint

12:5F:85:3B:04:83:28:8A:17:17:41:96:A2:59:0F:26:03:E3:11:7D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

accept-ranges

bytes

age

941

cache-control

🟡 1200s(max-age=1200)

content-length

236785

content-security-policy

frame-ancestors 'self' metlife.pathfactory.com qa.dentalprov...

content-type

text/html;charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (4)

mx1.metlife.com

mx2.hc1983-11.iphmx.com

mx1.hc1983-11.iphmx.com

mx2.metlife.com

Domain Information

metlife.com

Domain Age

31y 3m

Created

14.11.1994

Expires

13.11.2026

Last Updated

12.10.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Osano

Cookie Consent Banner

Osano

GDPR Indicators

Cookie consent banner detected

CMP: Osano

Typography & Readability

MetLifeCircular + Helvetica

53/100

Readability

/30

32/40

16px · LH 1.25

Hierarchy

/20

21/25

2.75x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

MetLifeCircular

Sans44px

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~48 CPL

Optimal (45–75)

44px

12px

32px

16px

Major Second

Scale

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

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

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

⚠️ Risky: Text appears on background images without overlay protection.

✅ Optimal line length: ~48 characters per line is comfortable to read.

⚠️ Cramped layout: 14 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

ContentsquareEnterprise

User behavior and product analytics

Privacy & Cookies

OsanoMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(13)maps.googleapis.com(5)assets.adobedtm.com(1)cmp.osano.com(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 01:09

Historical Analysis & Change Tracking