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

devex.com

https://devex.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

devex.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

98.88.0.25

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Nameservers

ns-603.awsdns-11.net.ns-1472.awsdns-56.org.ns-1714.awsdns-22.co.uk.ns-309.awsdns-38.com.

Performance

Page Speed

90 KB

84 requests

Image Optimization

Lazy LoadCloudinary

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Cloudinary

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Plausible Analytics Microsoft Clarity

Libraries

Other

CSS Frameworks

Icon Libraries

Tag Managers

Customer Support

SEO Analysis

B70/100

devex.comdevex.com

Devex | Devex

Devex is the media platform for the global development community.

Title Length13 chars

Recommended: 50-60 chars

Description Length65 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

19 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

295d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

09.11.2025

Valid Until

08.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (7)

devex.comdevex.io*.develop.devex.io*.devex.com*.production.devex.io*.devex.io*.master.devex.io

SHA-256 Fingerprint

72:E2:BE:CA:07:63:00:66:A4:7D:2A:2F:03:2A:AF:32:D2:3D:AE:A6...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ch

Sec-CH-UA,Sec-CH-UA-Mobile,Sec-CH-UA-Platform,Sec-CH-UA-Arch...

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Mon, 16 Feb 2026 21:06:59 GMT

strict-transport-security

max-age=31536000; includeSubDomains

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx2.googlemail.com

aspmx.l.google.com

+1 more

Domain Information

devex.com

Domain Age

22y 5m

Created

12.09.2003

Expires

12.09.2026

Last Updated

12.08.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

georgia + arial

86/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

16/25

1.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

georgia

Serif28px

Body Font

arial

Sans16px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

28px

32px

18px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

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

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

⚠️ Cramped layout: 14 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Customer Support

TidioSMB

Live chat and helpdesk tools

Behavior Analytics

Microsoft ClarityFree

PlausibleSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

d23nuec95rapgw.cloudfront.net(7)munchkin.marketo.net(2)servedbyadbutler.com(2)scripts.clarity.ms(1)clarity.ms(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube Bluesky

Sponsored

Last analyzed: 16 Feb 2026 at 21:07

Historical Analysis & Change Tracking