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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
3
REVIEW
0
PASS
6
INFO
0
Probed from Amsterdam, Netherlands
301 Moved Permanently
Checks
9
6 PASS 3 FIX
F
Crawlability
Action
robots.txt present, sitemap with 0 URLs
FIX
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 6880 bytes
Critical::
robots.txt blocks all crawlers
Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt references sitemap

Disallow: / for all user-agents prevents search engines from indexing any page. This will remove the site from search results.

Why this matters

Disallow: / in robots.txt blocks every search crawler — the site becomes invisible in organic search.

Learn more

Common deployment mistake: a staging robots.txt with `User-agent: * / Disallow: /` ships to prod. The site falls out of search results within days. Verify your robots.txt is the production-intended version. If this is intentional (private site), no action needed.

Source: Google Search Central

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

robots.txt 200 OK
Size 6880 B Sitemaps referenced 6 User-agents Google-InspectionTool, Pinterestbot, Google-Extended, GPTBot, Applebot, Googlebot-Image, Googlebot-News, LinkedInBot, msnbot, Screaming Frog SEO Spider, Twitterbot, Applebot-Extended, Scrapy, uptimerobot, Discordbot, Yeti, DuckDuckBot, facebookexternalhit, Googlebot, teoma, PerplexityBot, seznambot, TelegramBot, *, Amazonbot, Brightbot, ClaudeBot, PetalBot, viberbot, Yandex, Bingbot, Googlebot-Video, YaK, Slurp Blocking Yes — all crawlers blocked
# Notice: Collection of data on Threads through automated means is
# prohibited unless you have express written permission from Threads
# and may only be conducted for the limited purpose contained in said
# permission.
# All authorized user-agents listed on this page must comply with Meta’s
# Automated Data Collection Terms available at:
# https://www.facebook.com/legal/automated_data_collection_terms
User-agent: Amazonbot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Brightbot
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GPTBot
Disallow: /

User-agent: PerplexityBot
Disallow: /

User-agent: PetalBot
Disallow: /

User-agent: Scrapy
Disallow: /

User-agent: uptimerobot
Disallow: /

User-agent: viberbot
Disallow: /

User-agent: YaK
Disallow: /

User-agent: Yandex
Disallow: /

User-agent: Yeti
Disallow: /

User-agent: Applebot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Bingbot
Disallow: /*/c/
Disallow: /*/comments/
Disallow: /*/liked_by/
Disallow: /*/p/
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Discordbot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: DuckDuckBot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: facebookexternalhit
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Googlebot
Disallow: /*/c/
Disallow: /*/comments/
Disallow: /*/liked_by/
Disallow: /*/p/
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Googlebot-Image
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Googlebot-Video
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Googlebot-News
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Google-InspectionTool
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: LinkedInBot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: msnbot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Pinterestbot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Screaming Frog SEO Spider
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: seznambot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Slurp
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: teoma
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: TelegramBot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: Twitterbot
Disallow: /accounts/
Disallow: /activity/
Disallow: /ajax/
Disallow: /client_error/
Disallow: /deck/
Disallow: /intent/
Disallow: /logging/
Disallow: /onboarding/
Disallow: /publicapi/
Disallow: /qp/batch_fetch_web/
Disallow: /query/
Disallow: /settings/

User-agent: *
Disallow: /

Sitemap: https://www.threads.com/sitemap/threads_profiles_sitemap.xml.gz
Sitemap: https://www.threads.com/sitemap/threads_tags_hashtag_sitemap.xml.gz
Sitemap: https://www.threads.com/sitemap/threads_profiles_sitemap.xml.gz
Sitemap: https://www.threads.com/sitemap/threads_tags_gsc_bulk_keywords_sitemap.xml.gz
Sitemap: https://www.threads.com/sitemap/threads_tags_typeahead_sitemap.xml.gz
Sitemap: https://www.threads.com/sitemap/threads_tags_hashtag_sitemap.xml.gz


sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
D
TLS Certificate Expiry & Recommendations
Action
7 days until leaf cert expires — 4 issues to address
FIX

Certificate validity

7
days left
0d 30d 60d 90d+
Renew urgently — under 14 days remaining

Recommended actions

  • Renew certificate — 7 days remaining
  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • 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
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.

A
DNS Records
1 A records, 18 ms lookup
PASS
1 A records, 18 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 57.144.222.192
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2a03:2880:f36f:c0:face:b00c:0:43fe
Warning::
CNAME record at zone apex
A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.
Got: threads.net
Info::
4 nameserver(s) configured
Got: b.ns.facebook.com, c.ns.facebook.com, a.ns.facebook.com, d.ns.facebook.com
Info::
No MX records — email not configured via DNS
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: 18 ms
Got: 18 ms
A57.144.222.192
AAAA2a03:2880:f36f:c0:face:b00c:0:43fe
CNAMEthreads.net
NSb.ns.facebook.com, c.ns.facebook.com, a.ns.facebook.com, d.ns.facebook.com
MX
TXT
facebook-domain-verification=hiqltzmr7yrusmgfntnkxfgkb5u2tm
j5sc6587dxzfj90qfmqnxnlq8c41hwnm
google-site-verification=GpsmbpsLILYk3Kq9pLJXUil-TZ8NW1hrGKIt2whBGxE
google-site-verification=Wby5jFTz1ZZYzgOO08qcjxlvP7cM_17A6w5HOijJsKc
SPF v=spf1 a ~all
CAALookup not available with standard resolver
Resolved in 18 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

A CNAME at the zone apex can break MX and NS records. Use ALIAS/ANAME or A records instead.

Why this matters

CNAME at the apex (example.com) breaks every other apex record (MX, TXT, NS) — DNS-protocol violation per RFC 1034.

Learn more

RFC 1034 forbids CNAME alongside other records at the same name. Some DNS providers offer ALIAS / ANAME / flattened-CNAME records that work around this — use those instead. Otherwise apex-level CNAME breaks email (no MX), domain ownership verification (no TXT), and more.

Source: RFC 1034

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 Chain
1 redirect(s), 193 ms total
PASS
1 redirect(s), 193 ms total
Info::
Single redirect
Got: https://www.threads.net → https://www.threads.com/ (301)
Info::
Cross-domain redirect detected

https://www.threads.net

36 ms · HTTP/1.1

301

https://www.threads.com/

157 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.threads.net30136 msHTTP/1.1
2https://www.threads.com/200157 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (2 ms)
PASS
IPv6 reachable (2 ms)
Info::
IPv6 is configured and reachable at 2a03:2880:f36f:c0:face:b00c:0:43fe
Got: 2 ms connect
IPv6 Ready
AAAA Records 2a03:2880:f36f:c0:face:b00c:0:43fe Connection Reachable (2 ms)
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: www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.threads.net/
301https://threads.net/

Preferred variant: www

HTTP → HTTPS

301http://www.threads.net/ https://www.threads.net/

Consistent

A
Domain Intelligence
threads.net — via RegistrarSEC LLC, 29 years, 3 months old
PASS
threads.net — via RegistrarSEC LLC, 29 years, 3 months old
Warning::
Domain expires in 44 days
Consider enabling auto-renewal to prevent accidental expiration.
Got: Expires May 27, 2026
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: RegistrarSEC LLC
Domain expiry

EXPIRED

May 27, 2026

SSL certificate

7 days

Issued by DigiCert Inc

Domain age

29 years, 3 months

Registered May 28, 1997

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2a03:2880:f36f:c0:face:b00c:0:43fe

Registrar

RegistrarSEC LLC

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Domain has EXPIRED — renew immediately to avoid total site outage
  • Renew the TLS certificate or verify auto-renewal is working
  • Enable DNSSEC to protect visitors from DNS spoofing
Registrar RegistrarSEC LLC
Created May 28, 1997 (29 years, 3 months ago)
Expires May 27, 2026 (1 months)
Last Updated February 26, 2025
Name Servers a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com
DNSSEC Not enabled
Hosting
IP Address 2a03:2880:f36f:c0:face:b00c:0:43fe
Data source: rdap (0.1s)

Consider enabling auto-renewal to prevent accidental expiration.

Why this matters

Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.

Source: ICANN renewal policy

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 Timing
Total 54 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
20 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
7 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
54 ms
Total Time Total request time from DNS lookup through full response.
54 ms

Connection waterfall

DNS Lookup 20 ms TCP Connect 1 ms TLS Handshake 7 ms Server Processing 25 ms Content Transfer 1 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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