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91
Total
100
DNS
90
Email
84
Security
70
Network
100
Availability
Domainf-droid.org
IPv43
IPv63
MX records1
StatusActive
Domain technical report

F-Droid - Free and Open Source Android App Repository

f-droid.org

F-Droid is the app distribution ecosystem for Android where your user freedom comes first. Discover our app store, explore the world of free and open source (FOSS) apps and [learn](https://f-droid.org/about/) about our app distribution tools.

Generated: 2026-08-09T01:51:24-05:00 · Cached result

JSONCSVPDFVisit site
IPv43
IPv63
MX1
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

3 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

3 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓
CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

18 day(s) remaining.

i
Certificate lifetime6 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓
IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

3 record(s)
37.218.247.73
65.21.79.229
37.218.243.72

AAAA

3 record(s)
2a00:c6c0:0:153:3::1
2a00:c6c0:0:155:1::1
2a01:4f9:3b:546d::2

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 hosted.mailcow.de.

TXT

1 record(s)
"v=spf1 include:spf.mailcow.de ~all"

NS

2 record(s)
dns2.registrar-servers.com.
dns1.registrar-servers.com.

SOA

1 record(s)
dns1.registrar-servers.com. hostmaster.registrar-servers.com. 1786149468 43200 3600 604800 3601

CAA

4 record(s)
0 issue "letsencrypt.org; validationmethods=http-01"
0 issue "pki.goog"
0 iodef "https://gitlab.com/fdroid/admin/-/issues/"
0 iodef "mailto:letsencrypt-monitoring@f-droid.org"

DS

1 record(s)
48724 13 1 DA3AFC0F2EF1427E3A72BD89D9866E7AF53BF0B5

DNSKEY

2 record(s)
257 3 13 f7jBlgvX0qiM1UJnrlGf0zh10geyryhftkKY0udkBczXRq7tgG7oBuBD FTjxhVySxV1AMWtYld0KdBAvN/DPrA==
256 3 13 V29IZVmD4rnF6IMMYlDJW9f0paB0i5B4+uZ1llqQKF/Nk5z9IODK/pRq vLAXYbYrlgzXQ7hWj4YWhNYvqKSvTw==

RRSIG

3 record(s)
NS 13 2 1800 20260820000000 20260730000000 14773 f-droid.org. gwuSoO8gGtgDKackaIRXBStzYmLDzP8ogbuSW6hUN/1O5MzgwfQRl0zl VPSOyGQ/7NRZwevhhyglICeIJBZqQw==
SOA 13 2 3601 20260820000000 20260730000000 14773 f-droid.org. 2+nSGUiGTKm76gDIELKss6uwAtOCnZZoVwM5bHbjmp62g/ce/AiBiWmh fcG5m1R9Ef5XJI8NCUmFwE+KeVK6yw==
DS 8 2 3600 20260822152352 20260801142352 44925 org. n2P88k7dCASH0rO77iDcaRz8Stupl/1rnFk1pOyApW0Hk8SO0MvBUQaQ 8S3JdJJXvaQXleMW76yyrWOG5d9vPjikDa+CqMHN1vZlS+GpY3QidkUX JsyLUO6KvtAQsuSVAEAzTcU5Y9I3cq7OwZbXK60UVbZCufdWrQ/S06kG MIc=

NSEC

1 record(s)
_dmarc.f-droid.org. A NS SOA MX TXT AAAA RRSIG NSEC DNSKEY CAA

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 include:spf.mailcow.de ~all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:mailauth-reports@f-droid.org

DKIM

Selector default
v=DKIM1;h=sha256;k=rsa;t=s;s=email;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA24oVSIiN/mFzRlnp+C7es93upQQI1KCU5Vk10JidqnBKLTqoKkompm8m8cX/gESuUR9lB+amGJa+fDJuJ3Lzpf8EydPcWgm08WhYSOyXZ/VZtLOVWLPlil0QmEl1VAeu0DqzKmbvpeN19L+hhYVt+ptr3LcMOFl0tBHgLRHse+8ZIgct35M4yQsqqHdiDl8GBjhiK9yGEmbby0ppfetDSR+E7TtHjBlR3jBo9+n7dm41hmdW7RvS1FZDkxgHejVtbAGU7sXjMdJaZ9ZTzxfYvSjgYZ7wtFHeHtgCGNUNzZXfiiahIVH3j97EX++ckCHRrEUPMf+mxCFZ2sL4HORJgwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
F-Droid - Free and Open Source Android App Repository
Description
F-Droid is the app distribution ecosystem for Android where your user freedom comes first. Discover our app store, explore the world of free and open source (FOSS) apps and [learn](https://f-droid.org/about/) about our app distribution tools.
Final URL
https://f-droid.org/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://f-droid.org/
Version
3
Server
nginx/1.18.0
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
f-droid.org
Valid from
2026-05-29T20:08:58-05:00
Valid until
2026-08-27T20:08:57-05:00
Days remaining
18
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

6 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
37.218.243.72, 37.218.247.73, 65.21.79.229
61,17 ms
Cloudflare
1.1.1.1
37.218.243.72, 37.218.247.73, 65.21.79.229
23,01 ms
Quad9
9.9.9.9
37.218.243.72, 37.218.247.73, 65.21.79.229
24,71 ms
OpenDNS
208.67.222.222
37.218.243.72, 37.218.247.73, 65.21.79.229
27,74 ms
AdGuard
94.140.14.14
37.218.243.72, 37.218.247.73, 65.21.79.229
44,45 ms

IP, geolocation and ASNAssociated network information

37.218.247.73

No data
success
No
country
region
city
asn
organization
isp

65.21.79.229

No data
success
No
country
region
city
asn
organization
isp

37.218.243.72

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

hosted.mailcow.de

Port 25: Closed/unreachable - 152.5 ms - 
Port 465: Closed/unreachable - 267.2 ms - 
Port 587: Closed/unreachable - 267.6 ms - 220 hosted.mailcow.de

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