Infrastructure - https://umu.se BeaverCheck Audit

D

CDN & Delivery

Action

No CDN detected

FIX

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.

B

Redirect Chain

1 redirect(s), 1969 ms total

REVIEW

1 redirect(s), 1969 ms total

Single redirect

Got: https://umu.se → https://www.umu.se/ (302)

WWW normalization redirect

Uses 302 (temporary) redirect

If permanent, use 301 instead.

Got: https://umu.se

Redirect overhead: 1969 ms total

Got: 1969 ms

https://umu.se

987 ms · HTTP/1.1

302

https://www.umu.se/

982 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://umu.se	302	987 ms	HTTP/1.1
2	https://www.umu.se/	200	982 ms	HTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

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

B

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

REVIEW

www/non-www, trailing slash, HTTP→HTTPS

Both www and non-www versions serve content

Got: Both variants return 200 Expected: One variant 301-redirects to the other

HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.umu.se/

200https://umu.se/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://umu.se/ → https://umu.se/

Consistent

B

HTTP Probe Timing

Total 987 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

REVIEW

DNS Lookup

196 ms

TCP Connect

197 ms

TLS Handshake

397 ms

Time to First Byte

987 ms

Total Time

987 ms

Connection waterfall

DNS Lookup 196 ms TCP Connect 197 ms TLS Handshake 397 ms Server Processing 197 ms Content Transfer 0 ms

B

TLS Certificate Expiry & Recommendations

69 days until leaf cert expires — 3 issues to address

REVIEW

Certificate validity

69

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 Records

1 A records, 582 ms lookup

PASS

1 A records, 582 ms lookup

Resolves to 1 IPv4 address(es)

Got: 130.239.34.63

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

Has 1 IPv6 (AAAA) record(s)

Got: 2001:6b0:e:4::23f

4 nameserver(s) configured

Got: dns.norrnod.se, ns1.umu.se, ns2.umu.se, sunic.sunet.se

1 mail exchanger(s) configured

CAA records not checked

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

SPF record present in TXT

DNS resolution is slow (582 ms)

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Got: 582 ms

A	130.239.34.63
AAAA	2001:6b0:e:4::23f
CNAME	—
NS	dns.norrnod.se, ns1.umu.se, ns2.umu.se, sunic.sunet.se
MX	10 umu-se.mail.protection.outlook.com
TXT	MS=ms67665161 apple-domain-verification=wvpPGCHPutwv8sFN d365mktkey=do4RwJcCFyifHpv8VXmWiOD2iMvLtZxVAmKxG2lC67wx d365mktkey=zJZxFO0CBxNVDhnxGyRgx4FjTgdjzGFURbxsxnFk9Xwx ms-domain-verification=32da14bf-2093-482e-88da-93dbccfb3301 ms-domain-verification=9bbba7e8-ef02-4821-ae92-53c46f94475e google-site-verification=3QRzBkzK-0uR7vxLD_KBRHDCO1R7J-ZefJaq1S_j-ps D9lZBx3suL0GLn1jFFwg+JKq6XVNy1tJ5NveZtBpFxDnkrwGakeTASXynQ4bHWYojJKPhJmMDJHRLGqG... adobe-idp-site-verification=0a36aaa9f27607daee13d8a4132c8995fa1f532da3c7258c30e8... SPF v=spf1 a:smtp5.umu.se a:smtp6.umu.se ip4:194.165.227.8 ip4:130.239.8.66 ip4:130....
CAA	Lookup not available with standard resolver

Resolved in 582 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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.

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+

IPv6 Readiness

IPv6 reachable (186 ms)

PASS

IPv6 reachable (186 ms)

IPv6 is configured and reachable at 2001:6b0:e:4::23f

Got: 186 ms connect

IPv6 Ready

AAAA Records 2001:6b0:e:4::23f Connection Reachable (186 ms)

A+

Crawlability

robots.txt present, sitemap with 14 URLs

PASS

robots.txt present, sitemap with 14 URLs

robots.txt is present

Got: 71 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml contains 14 entries

Sitemap index with 14 child sitemaps

robots.txt references sitemap

robots.txt 200 OK

Size 71 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed

User-agent: *

Allow: /
Sitemap: https://www.umu.se/sitemapindex2.xml

sitemap.xml 200 OK

Type Sitemap Index URLs 14 entries Valid XML Yes

Child Sitemaps:

A+

Domain Intelligence

umu.se — via Loopia AB, 39 years, 4 months old

PASS

umu.se — via Loopia AB, 39 years, 4 months old

Domain registered until Dec 31, 2026 (8 months remaining)

Registrar: Loopia AB

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.

Domain expiry

200 days

December 31, 2026

SSL certificate

69 days

Issued by Let's Encrypt

Domain age

39 years, 4 months

Registered July 2, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2001:6b0:e:4::23f

Registrar

Loopia AB

Unlocked 4 NS records

Expiry timeline

Today

+1 year

Domain expiry SSL expiry Danger zone (≤30 days)

Recommended actions

Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers

Registrar Loopia AB

Created July 2, 1987 (39 years, 4 months ago)

Expires December 31, 2026 (8 months)

Last Updated December 2, 2025

Name Servers ns1.umu.se, ns2.umu.se, dns.norrnod.se, sunic.sunet.se

Registrant hkaume7710-00001

Hosting

IP Address 2001:6b0:e:4::23f

Data source: whois (1.4s)

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