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

upworthy.com

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

Export

upworthy.com

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.65.68

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Nginx

CDN

Fastly

Nameservers

ns-1425.awsdns-50.org.ns-2044.awsdns-63.co.uk.ns-457.awsdns-57.com.ns-715.awsdns-25.net.

Performance

Page Speed

597 KB

154 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Fastly, Inc.

CDN

Fastly

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch IconTheme Color

Detected API Sources

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

Technology Stack

14 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Advertising

Other

Web Servers

Security

SEO Analysis

A84/100

upworthy.comupworthy.com

Upworthy | Sharing the best of humanity with the world, one story a...

Upworthy - positive stories that inspire and uplift. From heartwarming moments to thought-provoking content, we’re sharing the best of humanity with the worl...

Title truncated. Description truncated.

Title Length76 chars

Recommended: 50-60 chars

Description Length180 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

113 URLs

robots.txt

9 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

187d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2+H3

Valid From

22.07.2025

Valid Until

23.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

upworthy.com*.upworthy.com

SHA-256 Fingerprint

B9:2A:D3:E8:65:D1:8C:55:19:59:19:8D:39:1A:57:08:D7:56:9A:11...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

3136

alt-svc

h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...

cache-control

🟡 0s(public, max-age=0)

cache-tag

long_cache_articles/19596302,section/0-19596302,w/12b040e/la...

cloudflare-cdn-cache-control

max-age=21600, stale-while-revalidate=2592000, stale-if-erro...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (7)

aspmx5.googlemail.com

aspmx3.googlemail.com

alt2.aspmx.l.google.com

aspmx.l.google.com

+3 more

Domain Information

upworthy.com

Domain Age

13y 11m

Created

14.03.2012

Expires

14.03.2027

Last Updated

12.02.2026

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

Data Protection Officer mentioned

Typography & Readability

Poppins Bold + sans-serif

60/100

Readability

/30

40/40

21px · LH 1.40

Hierarchy

/20

15/25

1.21x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Poppins Bold

Sans25px

Body Font

sans-serif

Sans21px

Contrast Ratio

Reading Comfort

~52 CPL

Optimal (45–75)

25px

18px

21px

✅ Excellent readability: 21px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

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

✅ 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

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

connect.facebook.net(3)ads.adthrive.com(3)cdn.keywee.co(2)googletagmanager.com(2)s3.amazonaws.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok Reddit

Sponsored

Last analyzed: 16 Feb 2026 at 17:51

Historical Analysis & Change Tracking