What technology does webassembly.org use?

We did not detect any specific technologies for webassembly.org in the latest scan.

Is webassembly.org secure (HTTPS)?

Yes. webassembly.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 10, 2026.

Who hosts webassembly.org?

Hosting provider information for webassembly.org is not available yet.

What is webassembly.org's SEO score?

webassembly.org scored 55/100 for SEO in the latest analysis (fair).

What is webassembly.org's overall website score?

webassembly.org has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.

webassembly.org

WebAssembly

Last scanned Jul 26, 2026, 5:48 AM

Overall score

Fair

Summary

SEO is fair (55/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

11 issues found · 4 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+5 more issues — details in the sections below.

SEO

6 issue(s) found

100

Performance

273 ms

Security

HTTPS & header checks

Accessibility

1 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.

Meta tags

Title: WebAssembly
Description
Canonical
Language: en
Charset: utf-8
Viewport: width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

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: Google Trust Services
Subject: webassembly.org
Valid from: Jun 12, 2026
Valid to: Sep 10, 2026
Days until expiry: 43
SAN domains: webassembly.org, *.webassembly.org

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 4

Links

11 internal · 7 external · 18 broken

Images

0 total · 0 missing alt

Scripts / Styles

3 scripts · 1 stylesheets

JS / CSS size

0 B · 0 B

Page size

5.4 KB

Robots.txt & Sitemap

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

SEO issues

Missing meta description
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://webassembly.org
Final URL: https://webassembly.org
HTTP status: 200
HTTP version: HTTP/2
Response time: 273 ms
HTML size: 5.4 KB
Redirect chain: https://webassembly.org

See something wrong on this report? Request a correction

Frequently asked questions

What technology does webassembly.org use?: We did not detect any specific technologies for webassembly.org in the latest scan.
Is webassembly.org secure (HTTPS)?: Yes. webassembly.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 10, 2026.
Who hosts webassembly.org?: Hosting provider information for webassembly.org is not available yet.
What is webassembly.org's SEO score?: webassembly.org scored 55/100 for SEO in the latest analysis (fair).
What is webassembly.org's overall website score?: webassembly.org has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.