What technology does deno.com use?

We did not detect any specific technologies for deno.com in the latest scan.

Is deno.com secure (HTTPS)?

Yes. deno.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 23, 2026.

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

What is deno.com's SEO score?

deno.com scored 75/100 for SEO in the latest analysis (fair).

What is deno.com's overall website score?

deno.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

deno.com

Deno, the drop-in JavaScript runtime for Node developers

Last scanned Jul 26, 2026, 5:47 AM

Overall score

Excellent

Summary

A drop-in JavaScript runtime with built-in TypeScript, npm support, and security by default. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing canonical link.

A drop-in JavaScript runtime with built-in TypeScript, npm support, and security by default. Run your existing Node project on Deno with no setup.

Top issues to fix

6 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
13 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

4 issue(s) found

100

Performance

132 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

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

A drop-in JavaScript runtime with built-in TypeScript, npm support, and security by default. Run your existing Node project on Deno with no setup.

GitHub X (Twitter)YouTube YouTube

Contact

Email, phone, and address published on this site's own pages.

Email: abuse@deno.com

Meta tags

Title: Deno, the drop-in JavaScript runtime for Node developers
Description: A drop-in JavaScript runtime with built-in TypeScript, npm support, and security by default. Run your existing Node project on Deno with no setup.
Canonical
Language: en
Charset
Viewport: width=device-width, initial-scale=1.0
Robots meta: index, follow
Manifest: https://deno.com/site.webmanifest?__frsh_c=b9c91e06a42cef5148ba2e6e1712f3565b471b5b

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: —
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: deno.com
Valid from: Jul 25, 2026
Valid to: Oct 23, 2026
Days until expiry: 86
SAN domains: *.deno.com, deno.com

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 16 · H3 9

Links

14 internal · 151 external · 13 broken

Images

39 total · 0 missing alt

Scripts / Styles

6 scripts · 4 stylesheets

JS / CSS size

19.3 KB · 9.3 KB

Page size

279 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 structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://deno.com
Final URL: https://deno.com
HTTP status: 200
HTTP version: HTTP/2
Response time: 127 ms
HTML size: 279 KB
Redirect chain: https://deno.com

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Frequently asked questions

What technology does deno.com use?: We did not detect any specific technologies for deno.com in the latest scan.
Is deno.com secure (HTTPS)?: Yes. deno.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 23, 2026.
Who hosts deno.com?: Hosting provider information for deno.com is not available yet.
What is deno.com's SEO score?: deno.com scored 75/100 for SEO in the latest analysis (fair).
What is deno.com's overall website score?: deno.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.