https://elixir-lang.org
Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.SCORE
95
GRADE
A
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from Amsterdam, Netherlands
200 OK
Checks
97 PASS 2 REVIEW
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 200 Expected: 301 redirect to HTTPS
www / non-www
301https://www.elixir-lang.org/
200https://elixir-lang.org/
Preferred variant: non-www
HTTP → HTTPS
200http://elixir-lang.org/
HTTP version does not redirect to HTTPS
BTLS Certificate Expiry & Recommendations46 days until leaf cert expires — 3 issues to addressREVIEW
TLS Certificate Expiry & Recommendations
46 days until leaf cert expires — 3 issues to address
Certificate validity
46
days left
0d 30d 60d 90d+
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records4 A records, 11 ms lookupPASS
DNS Records
4 A records, 11 ms lookup
4 A records, 11 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 185.199.110.153, 185.199.111.153, 185.199.108.153, 185.199.109.153
Info::
Has 4 IPv6 (AAAA) record(s)
Got: 2606:50c0:8002::153, 2606:50c0:8000::153, 2606:50c0:8003::153, 2606:50c0:8001::153
Info::
2 nameserver(s) configured
Got: dns1.registrar-servers.com, dns2.registrar-servers.com
Info::
5 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 11 ms
Got: 11 ms
| A | 185.199.110.153, 185.199.111.153, 185.199.108.153, 185.199.109.153 |
| AAAA | 2606:50c0:8002::153, 2606:50c0:8000::153, 2606:50c0:8003::153, 2606:50c0:8001::153 |
| CNAME | — |
| NS | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 10 eforward2.registrar-servers.com 10 eforward3.registrar-servers.com 10 eforward1.registrar-servers.com 15 eforward4.registrar-servers.com 20 eforward5.registrar-servers.com |
| TXT | SPF v=spf1 include:spf.efwd.registrar-servers.com ~all |
| CAA | Lookup not available with standard resolver |
Resolved in 11 ms
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Why this matters
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
A+Redirect ChainNo redirects — direct accessPASS
Redirect Chain
No redirects — direct access
No redirects — direct access
Info::
No redirects — direct access
Got: https://elixir-lang.org
https://elixir-lang.org
30 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://elixir-lang.org | 200 | 30 ms | HTTP/1.1 | GitHub.com |
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
IPv6 Readiness
IPv6 reachable (1 ms)
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2606:50c0:8002::153, 2606:50c0:8000::153, 2606:50c0:8003::153, 2606:50c0:8001::153
Got: 1 ms connect
IPv6 Ready
AAAA Records 2606:50c0:8002::153, 2606:50c0:8000::153, 2606:50c0:8003::153, 2606:50c0:8001::153 Connection Reachable (1 ms)
A+Crawlabilityrobots.txt present, sitemap with 85 URLsPASS
Crawlability
robots.txt present, sitemap with 85 URLs
robots.txt present, sitemap with 85 URLs
Info::
robots.txt is present
Got: 45 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 85 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 45 B Sitemaps referenced 1 User-agents Blocking No — crawling allowed
Sitemap: https://elixir-lang.org/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 85 entries Valid XML Yes
Sample URLs:
- https://elixir-lang.org/blog/2012/04/24/a-peek-inside-elixir-s-parallel-compiler/
- https://elixir-lang.org/blog/2012/05/25/elixir-v0-5-0-released/
- https://elixir-lang.org/blog/2012/08/01/elixir-v0-6-0-released/
- https://elixir-lang.org/blog/2012/10/20/elixir-v0-7-0-released/
- https://elixir-lang.org/blog/2012/11/18/elixir-v0-7-1-released/
A+Domain Intelligenceelixir-lang.org — via NameCheap, Inc., 14 years, 3 months oldPASS
Domain Intelligence
elixir-lang.org — via NameCheap, Inc., 14 years, 3 months old
elixir-lang.org — via NameCheap, Inc., 14 years, 3 months old
Info::
Domain registered until Feb 22, 2027 (10 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: NameCheap, Inc.
Domain expiry
271 days
February 22, 2027
SSL certificate
46 days
Issued by Let's Encrypt
Domain age
14 years, 3 months
Registered February 22, 2012
DNSSEC
Not enabled
Protects against DNS spoofing
Hosting
Unknown
2606:50c0:8002::153
Registrar
NameCheap, Inc.
Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
Registrar NameCheap, Inc.
Created February 22, 2012 (14 years, 3 months ago)
Expires February 22, 2027 (10 months)
Last Updated January 28, 2026
Name Servers dns1.registrar-servers.com, dns2.registrar-servers.com
DNSSEC Not enabled
Hosting
IP Address 2606:50c0:8002::153
Data source: rdap (1.3s)
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Why this matters
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033
A+HTTP Probe TimingTotal 129 ms — DNS, TCP, TLS, TTFB, content transfer breakdownPASS
HTTP Probe Timing
Total 129 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
4 msTCP Connect TCP Connect — time to establish a TCP connection to the server.
1 msTLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
4 msTime to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
129 msTotal Time Total request time from DNS lookup through full response.
130 msConnection waterfall
DNS Lookup 4 ms TCP Connect 1 ms TLS Handshake 4 ms Server Processing 121 ms Content Transfer 1 ms
ACDN & DeliveryFastly (MISS)PASS
CDN & Delivery
Fastly (MISS)
Fastly (MISS)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-rtm-ehrd2290032-RTM
Info::
CDN cache status: MISS
CDN Detected: Fastly
Provider Fastly Cache Status MISS Evidence x-served-by: cache-rtm-ehrd2290032-RTM
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.