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https://couchsurfing.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
2
REVIEW
2
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 2 REVIEW 2 FIX
D
Redirect Chain
Action
2 redirect(s), 1099 ms total
FIX
2 redirect(s), 1099 ms total
Warning::
2 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://www.couchsurfing.com:443/
Warning::
Redirect overhead: 1099 ms total
Got: 1099 ms

https://couchsurfing.com

384 ms · HTTP/1.1

301

https://www.couchsurfing.com:443/

541 ms · HTTP/1.1

302

https://www.couchsurfing.com/welcome

175 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://couchsurfing.com301384 msHTTP/1.1awselb/2.0
2https://www.couchsurfing.com:443/302541 msHTTP/1.1
3https://www.couchsurfing.com/welcome200175 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
TLS Certificate Expiry & Recommendations
171 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

171
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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 Records
2 A records, 46 ms lookup
PASS
2 A records, 46 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 98.95.82.168, 3.224.166.28
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1913.awsdns-47.co.uk, ns-698.awsdns-23.net, ns-414.awsdns-51.com, ns-1086.awsdns-07.org
Info::
7 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: 46 ms
Got: 46 ms
A98.95.82.168, 3.224.166.28
AAAA
CNAME
NSns-1913.awsdns-47.co.uk, ns-698.awsdns-23.net, ns-414.awsdns-51.com, ns-1086.awsdns-07.org
MX
0 aspmx.l.google.com
10 alt2.aspmx.l.google.com
10 alt1.aspmx.l.google.com
15 aspmx2.googlemail.com
20 aspmx4.googlemail.com
20 aspmx3.googlemail.com
20 aspmx5.googlemail.com
TXT
google-site-verification=-57CcthqTPu9wEzF_D2mJK4AJsZCJGcfB6dmNkVxbUE
google-site-verification=dePtB2FQiPj959WiuZ6mxuMi8SQo2Bk1qMRtYdjWCEI
gumk7ml9fr3ds8jgogh5k0p6vo
google-site-verification=4Z9cqbgraS5pvYlR46HbxdvmyorahG7VctkNTmWdcg8
google-site-verification=Xbyq11M9UWFdbu1BBXFPrYTrVSMFi-M5vOYtKBagZnM
google-site-verification=7sIFE7rqtb4Dc7qf9vOan2zxsnlIUiVpLE2ZwbQvtcc
SPF v=spf1 include:_spf.google.com include:sendgrid.net include:spf.sendingservice.n...
fdle7l8bs5r22e6od3ip630ohh
google-site-verification=ttiuLt4NeinX8Mx82Mk5n-PcfErnkGRPs2JgojNaUjo
CAALookup not available with standard resolver
Resolved in 46 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+
Crawlability
robots.txt present, sitemap with 2 URLs
PASS
robots.txt present, sitemap with 2 URLs
Info::
robots.txt is present
Got: 187 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 2 entries
Info::
Sitemap index with 2 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 187 B Sitemaps referenced 1 User-agents ADmantX, Twitterbot, * Blocking No — crawling allowed
User-agent: ADmantX
Disallow: /

User-agent: Twitterbot
Disallow: /admin

User-agent: *
Disallow: /admin
Sitemap: https://www.couchsurfing.com/root_sitemap.xml
Host: www.couchsurfing.com

sitemap.xml 200 OK
Type Sitemap Index URLs 2 entries Valid XML Yes
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

302https://www.couchsurfing.com/
200https://couchsurfing.com/

Preferred variant: non-www

HTTP → HTTPS

301http://couchsurfing.com/ https://www.couchsurfing.com:443/

Consistent

A+
Domain Intelligence
couchsurfing.com — via Register.com - Network Solutions, LLC, 27 years, 3 months old, hosted on AWS
PASS
couchsurfing.com — via Register.com - Network Solutions, LLC, 27 years, 3 months old, hosted on AWS
Info::
Domain registered until Jun 13, 2034 (8 years, 3 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: Register.com - Network Solutions, LLC
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

2921 days

June 13, 2034

SSL certificate

171 days

Issued by Amazon

Domain age

27 years, 3 months

Registered June 13, 1999

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

3.224.166.28

Registrar

Register.com - Network Solutions, LLC

Unlocked 4 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
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Register.com - Network Solutions, LLC
Created June 13, 1999 (27 years, 3 months ago)
Expires June 13, 2034 (8 years, 3 months)
Last Updated June 13, 2024
Name Servers ns-1086.awsdns-07.org, ns-1913.awsdns-47.co.uk, ns-414.awsdns-51.com, ns-698.awsdns-23.net
DNSSEC Not enabled
Hosting
IP Address 3.224.166.28
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.4s)

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

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A
HTTP Probe Timing
Total 436 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
46 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
97 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
196 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
437 ms
Total Time Total request time from DNS lookup through full response.
437 ms

Connection waterfall

DNS Lookup 46 ms TCP Connect 97 ms TLS Handshake 196 ms Server Processing 97 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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