What technology does coveralls.io use?

coveralls.io is built with Ruby on Rails, jQuery, Google Analytics.

Is coveralls.io secure (HTTPS)?

Yes. coveralls.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 10, 2026.

Who hosts coveralls.io?

Hosting provider information for coveralls.io is not available yet.

What is coveralls.io's SEO score?

coveralls.io scored 70/100 for SEO in the latest analysis (fair).

What is coveralls.io's overall website score?

coveralls.io has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.

coveralls.io

Coveralls - Test Coverage History & Statistics

Last scanned Jul 26, 2026, 5:47 AM

Overall score

Fair

Summary

Measure, track and drive improvement in code coverage across your engineering organization. This website uses Google Analytics behind Cloudflare CDN. SEO is fair (70/100) and accessibility is fair (65/100). Security scores excellent (90/100) and performance good (80/100). Top issue: Missing canonical link.

Measure, track and drive improvement in code coverage across your engineering organization. Works with any CI service. Always free for open source. COVERALLS!

Top issues to fix

10 issues found · 4 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
Missing viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Slow estimated load (4.9s)
Performance
Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.

+4 more issues — details in the sections below.

SEO

5 issue(s) found

Performance

4.90 s

Security

HTTPS & header checks

Accessibility

2 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.

Measure, track and drive improvement in code coverage across your engineering organization. Works with any CI service. Always free for open source. COVERALLS!

X (Twitter)X (Twitter)

Contact

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

Email: sales@coveralls.io support@coveralls.io

Meta tags

Title: Coveralls - Test Coverage History & Statistics
Description: Measure, track and drive improvement in code coverage across your engineering organization. Works with any CI service. Always free for open source. COVERALLS!
Canonical
Language: en
Charset: utf-8
Viewport
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Ruby on Rails jQuery 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: Google Trust Services
Subject: coveralls.io
Valid from: Jul 12, 2026
Valid to: Oct 10, 2026
Days until expiry: 73
SAN domains: coveralls.io, *.coveralls.io

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 7 · H2 4 · H3 8

Links

48 internal · 60 external · 20 broken

Images

39 total · 38 missing alt

Scripts / Styles

13 scripts · 2 stylesheets

JS / CSS size

997 B · 0 B

Page size

21.7 KB

Robots.txt & Sitemap

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

SEO issues

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

Scan details

Requested URL: https://coveralls.io
Final URL: https://coveralls.io
HTTP status: 200
HTTP version: HTTP/2
Response time: 4.90 s
HTML size: 21.7 KB
Redirect chain: https://coveralls.io

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Frequently asked questions

What technology does coveralls.io use?: coveralls.io is built with Ruby on Rails, jQuery, Google Analytics.
Is coveralls.io secure (HTTPS)?: Yes. coveralls.io uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 10, 2026.
Who hosts coveralls.io?: Hosting provider information for coveralls.io is not available yet.
What is coveralls.io's SEO score?: coveralls.io scored 70/100 for SEO in the latest analysis (fair).
What is coveralls.io's overall website score?: coveralls.io has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.