callfilter.app
Callfilter.app – Spam Call Blocker
Last scanned Jul 26, 2026, 1:49 PM
Overall score
Fair
Summary
This website uses PHP hosted on DigitalOcean. 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.
- United States
- Hosted on DigitalOcean
Top issues to fix
12 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd 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
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+6 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
147 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Contact
Email, phone, and address published on this site's own pages.
- info@callfilter.app
Source: https://callfilter.app/support
Meta tags
- Title
- Callfilter.app – Spam Call Blocker
- Description
- Canonical
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width,initial-scale=1.0,minimum-scale=1.0
- Robots meta
- index, follow
- Manifest
- https://callfilter.app/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- DigitalOcean
- CDN provider
- —
- IP address
- 138.68.79.36
- ASN
- AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.callfilter.app
- Valid from
- Jan 18, 2026
- Valid to
- Jan 19, 2027
- Days until expiry
- 175
- SAN domains
- *.callfilter.app, callfilter.app
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 2 · H3 0
Links
131 internal · 3 external · 8 broken
Images
2 total · 0 missing alt
Scripts / Styles
4 scripts · 1 stylesheets
JS / CSS size
1.1 KB · 24.1 KB
Page size
70.7 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 2
- 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
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://callfilter.app
- Final URL
- https://callfilter.app
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 146 ms
- HTML size
- 70.7 KB
- Redirect chain
- https://callfilter.app
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does callfilter.app use?
- callfilter.app is built with PHP, Google Analytics, Nginx.
- Is callfilter.app secure (HTTPS)?
- Yes. callfilter.app uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 19, 2027.
- Who hosts callfilter.app?
- callfilter.app is hosted on DigitalOcean.
- What is callfilter.app's SEO score?
- callfilter.app scored 55/100 for SEO in the latest analysis (fair).
- What is callfilter.app's overall website score?
- callfilter.app has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card