What technology does ycombinator.com use?

ycombinator.com is built with Laravel, Ruby on Rails, Google Analytics.

Is ycombinator.com secure (HTTPS)?

Yes. ycombinator.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 4, 2026.

Who hosts ycombinator.com?

Hosting provider information for ycombinator.com is not available yet.

What is ycombinator.com's SEO score?

ycombinator.com scored 65/100 for SEO in the latest analysis (fair).

What is ycombinator.com's overall website score?

ycombinator.com has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

Has ycombinator.com's score changed over time?

ycombinator.com's overall score has improved by 6 points (from 79 to 85) since Jul 18, 2026.

ycombinator.com

Y Combinator

Last scanned Jul 29, 2026, 2:00 PM · 13 views

Overall score

Great

Summary

Y Combinator created a new model for funding early stage startups. This website uses Google Analytics behind Cloudflare CDN. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing canonical link.

Y Combinator created a new model for funding early stage startups. Four times a year we invest in a large number of startups.

Top issues to fix

8 issues found · 2 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

SEO

5 issue(s) found

100

Performance

298 ms

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Score history

+6 overall since Jul 18, 2026

Overall: 85
SEO: 65
Security: 90
Performance: 100
Accessibility: 90

Organization

Company details published in this site's own structured data.

Y Combinator created a new model for funding early stage startups. Four times a year we invest in a large number of startups.

X (Twitter)Facebook Instagram YouTube

Meta tags

Title: Y Combinator
Description: Y Combinator created a new model for funding early stage startups. Four times a year we invest in a large number of startups.
Canonical
Language: en
Charset: utf-8
Viewport: initial-scale=1, width=device-width, height=device-height
Robots meta: follow
Manifest

Technologies

Detected frameworks, languages, and tools.

Laravel Ruby on Rails Google Analytics

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: ycombinator.com
Valid from: Jul 6, 2026
Valid to: Oct 4, 2026
Days until expiry: 67
SAN domains: *.ycombinator.com, ycombinator.com

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyMissing

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 0 · H2 6 · H3 11

Links

50 internal · 21 external · 20 broken

Images

85 total · 0 missing alt

Scripts / Styles

10 scripts · 25 stylesheets

JS / CSS size

3.2 KB · 0 B

Page size

291 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://ycombinator.com
Final URL: https://www.ycombinator.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 293 ms
HTML size: 291 KB
Redirect chain: https://ycombinator.com → https://www.ycombinator.com/

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Frequently asked questions

What technology does ycombinator.com use?: ycombinator.com is built with Laravel, Ruby on Rails, Google Analytics.
Is ycombinator.com secure (HTTPS)?: Yes. ycombinator.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 4, 2026.
Who hosts ycombinator.com?: Hosting provider information for ycombinator.com is not available yet.
What is ycombinator.com's SEO score?: ycombinator.com scored 65/100 for SEO in the latest analysis (fair).
What is ycombinator.com's overall website score?: ycombinator.com has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
Has ycombinator.com's score changed over time?: ycombinator.com's overall score has improved by 6 points (from 79 to 85) since Jul 18, 2026.