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sst.dev

https://sst.dev· First analyzed 20 May 2026· Updated 20 May 2026
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sst.dev
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Mobile screenshot of sst.dev
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

13.33.235.85

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

ns-403.awsdns-50.com.ns-773.awsdns-32.net.ns-1142.awsdns-14.org.ns-1763.awsdns-28.co.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
640 ms10%
Speed Index
832 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
138 KB
20 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Astrov5.15.3
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

2 Technologies Detected

Meta Frameworks

1
Astro

CSS Frameworks

1
Tailwind CSS

SEO Analysis

D53/100
16
6
2
Meta Tags4/15
Content3/12
Headings6/8
Technical18/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sst.devsst.dev

SST

No description available for this page.

Title Length3 chars

Recommended: 50-60 chars (~18px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (2/2) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

54 rules

Allows all crawlers

Local SEO

Local Search Readiness

8/100
Poor
3 12 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D46/100
Bot Access
20/25
Machine Read.
15/25
Schema Data
0/25
Citation
11/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
code blocksheader/footer
Text ratio:1%
Words:155
Token eff.:Too Short
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary239w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
AI readiness recommendation preview...
Upgrade to view recommendations

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
A
88/100
16
Passed
0
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
5/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
75/100
A+
14 mg
CO₂e / view
137.8 KB
Page Weight
95%
Cleaner Than
New Visitor
16 mg
vs
Returning (cached)
8 mg
Annual (10K/mo)
1.7 kg
Emission Segments
Data Center
<0.001 g
Network
4 mg
Device
9 mg
Resource Breakdown
JavaScript
24.2 KB
Images
10.1 KB
CSS
87.7 KB
HTML
15.9 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
1 recommendation
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

26%Critical
Interactive

HTTPS

WAF

89d

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/2

Valid From

19.07.2025

Valid Until

17.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

sst.dev

SHA-256 Fingerprint

AA:7D:03:29:95:16:2F:A2:F7:84:66:B8:F6:BA:88:9A:D0:FE:CF:BC...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(public,max-age=0,s-maxage=86400,stale-while-revalidate=86400)
content-encoding
⚡ Brotli(br)
content-type
text/html;charset=UTF-8
date
Wed, 20 May 2026 14:34:55 GMT
etag
W/"7524272bc11b177b69ea30907b4255ed"
last-modified
Wed, 20 May 2026 12:38:27 GMT
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com
alt2.aspmx.l.google.com

+1 more

Domain Information

sst.dev

DNSSEC
Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
70/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

IBM Plex Mono + Rubik Variable

WCAG Partial
80/100
Readability
/30
24/30

20px · LH 1.50

Hierarchy
/20
19/20

2.4x ratio · ✓ H1→H6

WCAG
/25
19/25

3.3:1 min contrast

Performance
/25
18/25

2 fonts · 3 req

Heading Font

IBM Plex Mono

Mono48px

Body Font

Rubik Variable

Sans20px

Contrast Ratio

3.3:1

2 issues

Reading Comfort

~31 CPL

Narrow lines
48px
h1
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.3:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

Buy on MyFontsFluid Type (rem)Flesch 52

Color Palette

3 unique colors
2.16:1 Fail Light
#ffffff
Background· 91.7%
#b1afba
Other· 3.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

10 Resources

7
Scripts
3
Styles
3
Async
2
Defer

Top Script Sources

local(3)gstatic.com(1)widget.kapa.ai(1)assets.onedollarstats.com(1)google.com(1)

Website Identity

sst.dev

hello@sst.dev
Location detected: 🇺🇸 United Statesvia ip
📧 Google Workspaceen

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Last analyzed: 20 May 2026 at 14:35

Historical Analysis & Change Tracking