PicSum

PicSum is an intuitive, fast-performing image management app. It eliminates the stress of managing and viewing images.

Design

Added August 11, 2026 · Last analysed August 11, 2026 · via

Own this Launch?

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 11 August 2026; the live site may have changed since.

PicSum is partway there. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt.

Launched on Product Hunt on August 11, 2026. The site is hosted on GitHub Pages and served through Fastly. The crawl picked up 2 technologies on this site, covering CDN and hosting. The stack includes Fastly and GitHub Pages.

For context, it's on one of the most common stacks we track, shared by 2,238 launches.

If you own this site, refresh the snapshot and see the full fix list any time →

4.1

StackScope Score

Fair

64/100 Launch Readiness

Well prepared

0/6 Security Headers

Poor

2/3 Legal

Partial

1/2 Crawl files

Partial

92/100 Performance

Fast

Vibe Score 0 · No AI signals

How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (2)

Infrastructure

CDN	Fastly
Hosting	GitHub Pages

Infrastructure

Network

FASTLY - Fastly, Inc., US

AS54113 · US

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Not green hosted

No green-energy record. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 4 Jun 2026 to 2 Sep 2026

Certificate as captured in this snapshot, not a live check.

Email Security

✗

SPF Not published. Your domain can be spoofed in phishing emails.

DKIM Not detected at common selectors. Your provider may use a custom one.

✗

DMARC Not published. Receivers fall back to permissive defaults.

MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.

TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (1)

Session storage (1)

Key	Size	Detected as
lang-selected	2 B	-

Readiness Breakdown How?

✓ Custom title and meta description

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

- Open Graph tags (title, image, description)

- Canonical URL declared

- Twitter card meta tags

Performance How?

171 ms Server response

71% Faster than peers

316 ms Largest contentful paint

0.00 Cumulative layout shift

812 KB Page weight

744 KB Image weight

0 Console errors

0 Failed requests

⚠ 3 images: 2 oversized, 1 without width/height

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

AI Stance

No AI stance declared

✗ llms.txt published

✓ No AI bots blocked in robots.txt

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✗ robots.txt

✓ sitemap.xml (7 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy-en.html

? Terms of Service not detected

94% unique

Security Headers (0/6)

✗

Referrer-Policy

✗

X-Frame-Options

✗

Permissions-Policy experimental (check browser support)

✗

X-Content-Type-Options

✗

Content-Security-Policy

✗

Strict-Transport-Security

–

X-XSS-Protection deprecated (use Content-Security-Policy)

Build

0 JS files

1 CSS files

0 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.