Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Santa Clara, United States

302 Found

Checks

4 PASS 3 REVIEW 2 FIX

Redirect Chain

Action

2 redirect(s), 1774 ms total

FIX

2 redirect(s), 1774 ms total

2 redirects before reaching final URL

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

WWW normalization redirect

Uses 302 (temporary) redirect

If permanent, use 301 instead.

Got: https://unesco.org

Redirect overhead: 1774 ms total

Got: 1774 ms

https://unesco.org

694 ms · HTTP/1.0

302

https://www.unesco.org/

917 ms · HTTP/1.0

302

https://www.unesco.org/en

163 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://unesco.org	302	694 ms	HTTP/1.0	BigIP
2	https://www.unesco.org/	302	917 ms	HTTP/1.0	BigIP
3	https://www.unesco.org/en	200	163 ms	HTTP/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

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.

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

Crawlability

robots.txt present, no sitemap

REVIEW

robots.txt present, no sitemap

robots.txt is present

Got: 10240 bytes

No sitemap.xml found

A sitemap helps search engines discover and index your pages more efficiently.

robots.txt does not reference a sitemap

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK

Size 10240 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

# Search pages
Disallow: /en/search
Disallow: /en/search/*
Disallow: /en/explore/*
Disallow: /fr/search
Disallow: /fr/search/*
Disallow: /fr/explore/*
Disallow: /es/search
Disallow: /es/search/*
Disallow: /es/explore/*
Disallow: /ru/search
Disallow: /ru/search/*
Disallow: /ru/explore/*
Disallow: /ar/search
Disallow: /ar/search/*
Disallow: /ar/explore/*
Disallow: /zh/search
Disallow: /zh/search/*
Disallow: /zh/explore/*
Disallow: /pt/search
Disallow: /pt/search/*
Disallow: /pt/explore/*
Disallow: /ja/search
Disallow: /ja/search/*
Disallow: /ja/explore/*
Disallow: /uz/search
Disallow: /uz/search/*
Disallow: /uz/explore/*
Disallow: /id/search
Disallow: /id/search/*
Disallow: /id/explore/*

# Route URL patterns
Disallow: /fr/search
Disallow: /fr/search/*
Disallow: /fr/explore/*
Disallow: /es/search
Disallow: /es/search/*
Disallow: /es/explore/*
Disallow: /ru/search
Disallow: /ru/search/*
Disallow: /ru/explore/*
Disallow: /ar/search
Disallow: /ar/search/*
Disallow: /ar/explore/*
Disallow: /zh/search
Disallow: /zh/search/*
Disallow: /zh/explore/*
Disallow: /pt/search
Disallow: /pt/search/*
Disallow: /pt/explore/*
Disallow: /ja/search
Disallow: /ja/search/*
Disallow: /ja/explore/*
Disallow: /id/search
Disallow: /id/search/*
Disallow: /id/explore/*

# Query parameters
Disallow: /*?*f[0]=*
Disallow: /*?*f0=*
Disallow: /*?*date_from=*

# Isolated cases
Disallow: /archives/multimedia/extra
Disallow: /archives/multimedia/subject/52/instructions+for+content+providers
Disallow: /archives/multimedia/rss/Instructions+for+content+providers
Disallow: /archives/multimedia/feedback.php

# Computed cases
Disallow: /*?f[*
Disallow: /*&f[*
Disallow: /*?f%5B0*
Disallow: /*&f%5B1*
Disallow: /search
Disallow: /en/search
Disallow: /en/search/*
Disallow: /en/explore/*
Disallow: /event/*/ical
Disallow: /en/event/*/ical
Disallow: /biennaleluanda/2021/*?f[*
Disallow: /biennaleluanda/2021/*&f[*
Disallow: /biennaleluanda/2021/*?f%5B0*
Disallow: /biennaleluanda/2021/*&f%5B1*
Disallow: /biennaleluanda/2021/search
Disallow: /biennaleluanda/2021/en/search
Disallow: /biennaleluanda/2021/en/search/*
Disallow: /biennaleluanda/2021/en/explore/*
Disallow: /biennaleluanda/2021/event/*/ical
Disallow: /biennaleluanda/2021/en/event/*/ical
Disallow: /fr/search
Disallow: /fr/search/*
Disallow: /fr/explore/*
Disallow: /fr/event/*/ical
Disallow: /biennaleluanda/2021/fr/search
Disallow: /biennaleluanda/2021/fr/search/*
Disallow: /biennaleluanda/2021/fr/explore/*
Disallow: /biennaleluanda/2021/fr/event/*/ical
Disallow: /es/search
Disallow: /es/search/*
Disallow: /es/explore/*
Disallow: /es/event/*/ical
Disallow: /biennaleluanda/2021/es/search
Disallow: /biennaleluanda/2021/es/search/*
Disallow: /biennaleluanda/2021/es/explore/*
Disallow: /biennaleluanda/2021/es/event/*/ical
Disallow: /ru/search
Disallow: /ru/search/*
Disallow: /ru/explore/*
Disallow: /ru/event/*/ical
Disallow: /biennaleluanda/2021/ru/search
Disallow: /biennaleluanda/2021/ru/search/*
Disallow: /biennaleluanda/2021/ru/explore/*
Disallow: /biennaleluanda/2021/ru/event/*/ical
Disallow: /ar/search
Disallow: /ar/search/*
Disallow: /ar/explore/*
Disallow: /ar/event/*/ical
Disallow: /biennaleluanda/2021/ar/search
Disallow: /biennaleluanda/2021/ar/search/*
Disallow: /biennaleluanda/2021/ar/explore/*
Disallow: /biennaleluanda/2021/ar/event/*/ical
Disallow: /zh/search
Disallow: /zh/search/*
Disallow: /zh/explore/*
Disallow: /zh/event/*/ical
Disallow: /biennaleluanda/2021/zh/search
Disallow: /biennaleluanda/2021/zh/search/*
Disallow: /biennaleluanda/2021/zh/explore/*
Disallow: /biennaleluanda/2021/zh/event/*/ical
Disallow: /pt/search
Disallow: /pt/search/*
Disallow: /pt/explore/*
Disallow: /pt/event/*/ical
Disallow: /biennaleluanda/2021/pt/search
Disallow: /biennaleluanda/2021/pt/search/*
Disallow: /biennaleluanda/2021/pt/explore/*
Disallow: /biennaleluanda/2021/pt/event/*/ical
Disallow: /ja/search
Disallow: /ja/search/*
Disallow: /ja/explore/*
Disallow: /ja/event/*/ical
Disallow: /biennaleluanda/2021/ja/search
Disallow: /biennaleluanda/2021/ja/search/*
Disallow: /biennaleluanda/2021/ja/explore/*
Disallow: /biennaleluanda/2021/ja/event/*/ical
Disallow: /id/search
Disallow: /id/search/*
Disallow: /id/explore/*
Disallow: /id/event/*/ical
Disallow: /biennaleluanda/2021/id/search
Disallow: /biennaleluanda/2021/id/search/*
Disallow: /biennaleluanda/2021/id/explore/*
Disallow: /biennaleluanda/2021/id/event/*/ical
Disallow: /uk/search
Disallow: /uk/search/*
Disallow: /uk/explore/*
Disallow: /uk/event/*/ical
Disallow: /biennaleluanda/2021/uk/search
Disallow: /biennaleluanda/2021/uk/search/*
Disallow: /biennaleluanda/2021/uk/explore/*
Disallow: /biennaleluanda/2021/uk/event/*/ical
Disallow: /uz/search
Disallow: /uz/search/*
Disallow: /uz/explore/*
Disallow: /uz/event/*/ical
Disallow: /biennaleluanda/2021/uz/search
Disallow: /biennaleluanda/2021/uz/search/*
Disallow: /biennaleluanda/2021/uz/explore/*
Disallow: /biennaleluanda/2021/uz/event/*/ical
Disallow: /th/search
Disallow: /th/search/*
Disallow: /th/explore/*
Disallow: /th/event/*/ical
Disallow: /biennaleluanda/2021/th/search
Disallow: /biennaleluanda/2021/th/search/*
Disallow: /biennaleluanda/2021/th/explore/*
Disallow: /biennaleluanda/2021/th/event/*/ical
Disallow: /it/search
Disallow: /it/search/*
Disallow: /it/explore/*
Disallow: /it/event/*/ical
Disallow: /biennaleluanda/2021/it/search
Disallow: /biennaleluanda/2021/it/search/*
Disallow: /biennaleluanda/2021/it/explore/*
Disallow: /biennaleluanda/2021/it/event/*/ical
Disallow: /biodiversity/portal/*?f[*
Disallow: /biodiversity/portal/*&f[*
Disallow: /biodiversity/portal/*?f%5B0*
Disallow: /biodiversity/portal/*&f%5B1*
Disallow: /biodiversity/portal/search
Disallow: /biodiversity/portal/en/search
Disallow: /biodiversity/portal/en/search/*
Disallow: /biodiversity/portal/en/explore/*
Disallow: /biodiversity/portal/event/*/ical
Disallow: /biodiversity/portal/en/event/*/ical
Disallow: /biodiversity/portal/fr/search
Disallow: /biodiversity/portal/fr/search/*
Disallow: /biodiversity/portal/fr/explore/*
Disallow: /biodiversity/portal/fr/event/*/ical
Disallow: /biodiversity/portal/es/search
Disallow: /biodiversity/portal/es/search/*
Disallow: /biodiversity/portal/es/explore/*
Disallow: /biodiversity/portal/es/event/*/ical
Disallow: /biodiversity/portal/ru/search
Disallow: /biodiversity/portal/ru/search/*
Disallow: /biodiversity/portal/ru/explore/*
Disallow: /biodiversity/portal/ru/event/*/ical
Disallow: /biodiversity/portal/ar/search
Disallow: /biodiversity/portal/ar/search/*
Disallow: /biodiversity/portal/ar/explore/*
Disallow: /biodiversity/portal/ar/event/*/ical
Disallow: /biodiversity/portal/zh/search
Disallow: /biodiversity/portal/zh/search/*
Disallow: /biodiversity/portal/zh/explore/*
Disallow: /biodiversity/portal/zh/event/*/ical
Disallow: /biodiversity/portal/pt/search
Disallow: /biodiversity/portal/pt/search/*
Disallow: /biodiversity/portal/pt/explore/*
Disallow: /biodiversity/portal/pt/event/*/ical
Disallow: /biodiversity/portal/ja/search
Disallow: /biodiversity/portal/ja/search/*
Disallow: /biodiversity/portal/ja/explore/*
Disallow: /biodiversity/portal/ja/event/*/ical
Disallow: /biodiversity/portal/id/search
Disallow: /biodiversity/portal/id/search/*
Disallow: /biodiversity/portal/id/explore/*
Disallow: /biodiversity/portal/id/event/*/ical
Disallow: /biodiversity/portal/uk/search
Disallow: /biodiversity/portal/uk/search/*
Disallow: /biodiversity/portal/uk/explore/*
Disallow: /biodiversity/portal/uk/event/*/ical
Disallow: /biodiversity/portal/uz/search
Disallow: /biodiversity/portal/uz/search/*
Disallow: /biodiversity/portal/uz/explore/*
Disallow: /biodiversity/portal/uz/event/*/ical
Disallow: /biodiversity/portal/th/search
Disallow: /biodiversity/portal/th/search/*
Disallow: /biodiversity/portal/th/explore/*
Disallow: /biodiversity/portal/th/event/*/ical
Disallow: /biodiversity/portal/it/search
Disallow: /biodiversity/portal/it/search/*
Disallow: /biodiversity/portal/it/explore/*
Disallow: /biodiversity/portal/it/event/*/ical
Disallow: /creativity/*?f[*
Disallow: /creativity/*&f[*
Disallow: /creativity/*?f%5B0*
Disallow: /creativity/*&f%5B1*
Disallow: /creativity/search
Disallow: /creativity/en/search
Disallow: /creativity/en/search/*
Disallow: /creativity/en/explore/*
Disallow: /creativity/event/*/ical
Disallow: /creativity/en/event/*/ical
Disallow: /creativity/fr/search
Disallow: /creativity/fr/search/*
Disallow: /creativity/fr/explore/*
Disallow: /creativity/fr/event/*/ical
Disallow: /creativity/es/search
Disallow: /creativity/es/search/*
Disallow: /creativity/e

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

TLS Certificate Expiry & Recommendations

79 days until leaf cert expires — 4 issues to address

REVIEW

Certificate validity

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

DNS Records

1 A records, 441 ms lookup

PASS

1 A records, 441 ms lookup

Resolves to 1 IPv4 address(es)

Got: 193.242.192.41

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

No IPv6 (AAAA) records

4 nameserver(s) configured

Got: ns-nadc.unicc.org, ns1.unesco.org, ns.unicc.org, ns0.unesco.org

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 (441 ms)

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

Got: 441 ms

A	193.242.192.41
AAAA	—
CNAME	—
NS	ns-nadc.unicc.org, ns1.unesco.org, ns.unicc.org, ns0.unesco.org
MX	20 unesco-org.mail.protection.outlook.com
TXT	successfactors-site-verification=ZmE4NjljN2JjMDgyMmYyMzgyMjQ5YTAzMTA1NGJiMTE2ZWE... SPF v=spf1 mx ip4:193.242.192.22 ip4:193.242.192.23 ip4:193.242.192.24 ip4:66.77.65.... MS=ms39408964 _itnn9yn7ufcnocnafomvjpy9n5ikxan d365mktkey=68pjaernczowx4blndg153c9f d365mktkey=6ausyyuzjgu1xskm6vcf0q0lo pass=5e820652b5d4c281616c2dd30c629d56 maintenance=bf21ae2431aacc6161b5df4e79797207 docusign=61683a7c-ab67-4904-a99f-42742edb4440 docusign=947cfa4f-305f-4233-a76b-6af49d2f3a70 ms-domain-verification=41756529-0c17-4326-bc7e-bad70ec97e0f protonmail-verification=a50ff2eff7ae46d433e35686ac755404b2b3e186 google-site-verification=-u41yIrQyJtFJSu_RAUBpaR6dGnLd8e571ib0p5TwnY google-site-verification=4XtqV53q6N52Rfsuvs4O_COVHrw21Mcds_euCiS40_0 google-site-verification=OKHjGXXKmljNSp3RloooLGIw4YGAx7zPxMTVkfcplmY google-site-verification=ZmB4X8cKtOtFlPRlWLx2MJStVndLvNf0fMjVjQdnOzM successfactors-site-verification=MzcxZGZmYTc2NjM0Y2VlNmRmYThkZjAyOGU5ODJlYjU5NTg...
CAA	Lookup not available with standard resolver

Resolved in 441 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

URL Variants

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

PASS

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

www/non-www redirect configured correctly (preferred: non-www)

HTTP→HTTPS redirect uses 302 instead of 301

Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

302https://www.unesco.org/

200https://unesco.org/

Preferred variant: non-www

HTTP → HTTPS

302http://unesco.org/ → https://www.unesco.org/

Use 301 (permanent) instead of 302 (temporary)

A+

Domain Intelligence

unesco.org — via Gandi SAS, 32 years, 7 months old, hosted on France Telecom - Orange, FR

PASS

unesco.org — via Gandi SAS, 32 years, 7 months old, hosted on France Telecom - Orange, FR

Domain registered until Mar 2, 2035 (9 years remaining)

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.

Registrar: Gandi SAS

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.

Hosting: France Telecom - Orange, FR

Got: AS3215

Domain expiry

3153 days

March 2, 2035

SSL certificate

79 days

Issued by Let's Encrypt

Domain age

32 years, 7 months

Registered March 1, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

France Telecom - Orange, FR

ASN AS3215

193.242.192.41

Registrar

Gandi SAS

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 Gandi SAS

Created March 1, 1994 (32 years, 7 months ago)

Expires March 2, 2035 (9 years)

Last Updated February 10, 2026

Name Servers ns-nadc.unicc.org, ns.unicc.org, ns0.unesco.org, ns1.unesco.org

DNSSEC Not enabled

Hosting

IP Address 193.242.192.41

ASN AS3215 (France Telecom - Orange, FR)

Provider France Telecom - Orange, FR

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

HTTP Probe Timing

Total 747 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

155 ms

TCP Connect

147 ms

TLS Handshake

299 ms

Time to First Byte

747 ms

Total Time

747 ms

Connection waterfall

DNS Lookup 155 ms TCP Connect 147 ms TLS Handshake 299 ms Server Processing 147 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.