Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BCrawlabilityrobots.txt present, sitemap with 0 URLsREVIEW
Search engines may not be able to parse the sitemap. Fix XML validation errors.
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.
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 for igx now at http://www.seattle.gov/
User-agent: *
Sitemap: http://www.seattle.gov/sitemap
# repeat use / as end of directory
Disallow: /cgi-bin/ # This is an infinite virtual URL space
Disallow: /events/ # speed up searching.
Disallow: /scripts/ # This is an infinite virtual URL space
Disallow: /test/ # This is an infinite virtual URL space
Disallow: /vision2000/ # retired.
Disallow: /light/accounts/assistance/ # exclude per Nate... infinite loops spiders
Disallow: /light/includes/ # exclude per Dana
Disallow: /light/news/doc/ # exclude per Dana
Disallow: /light/printdocs/ # exclude per Dana
Disallow: /light/sclbusiness/ # exclude per Dana
Disallow: /mayor/special_docs/ # old per Nate
Disallow: /personnel/includes/ # exclude test directory for printing files
Disallow: /seattle/ # exclude as duplicate linking path
Disallow: /a404/
Disallow: /archive/
Disallow: /archives/
Disallow: /arts/events/ # exclude arts calendar
Disallow: /calendar/ # Ticket 01429559
Disallow: /dpd/appdocs/
Disallow: /dpd/appsnippets/
Disallow: /dpd/codes/dr/
Disallow: /dpd/luib/
Disallow: /dpd/planning/design_commission/includes/
Disallow: /dpd/publications/cam/
Disallow: /dpd/research/gis/webplots/
Disallow: /directory/ # Ticket 01429559
Disallow: /living-in-seattle/event-calendar/ # Ticket 01429559
Disallow: /news/detail_print.asp
Disallow: /onhold/
Disallow: /util/spu404/ # Spu 404 page
Disallow: /util/warp/ # limit searching
Disallow: /util_old/
Disallow: /Documents/Departments/EthicsElections/DemocracyVoucher/
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations313 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- 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
ADNS Records4 A records, 1131 ms lookupPASS
| A | 13.249.228.37, 13.249.228.5, 13.249.228.101, 13.249.228.73 |
| AAAA | — |
| CNAME | — |
| NS | ns50.ultradns2.org, pdns100.ultradns.org, pdns100.ultradns.net, pdns100.ultradns.com, pdns100.ultradns.biz, ns50.ultradns2.com |
| MX | 10 mx.us.etp.fireeyegov.com |
| TXT | adobe-idp-site-verification=78517e371b96cba7c3faee7da0ddd8e672adb7e59d8357c82053... 8e2f2b53180136c29bf54f541332beafb796eac9af07e318d7 adobe-sign-verification=4855c0549a136ded8682683a4f4545b4
bluebeam-verification=3bd5ykotqdhhjgd4o2hscwqixspqdi miro-verification=913935c0f2081e80416916aeb988b4450d18aadb smartsheet-site-validation=u47Xxed3R3SNavWGgfsPY0fnLwEArc-L cisco-ci-domain-verification=5b0b9a05dec79c89e20dd2fa8a36c92c9c734ab598b1206bb75... SPF v=spf1 include:spf.protection.outlook.com include:seattle.gov._nspf.vali.email i... airtable-verification=5040eef3ca27ed8e96f1722e81ecd924 asv=b8a60db30114255a185b9d1a44612bd9 canva-site-verification=_Dj8qUDngnDlAhURa4J0sQ google-site-verification=YnNifXZZP7kd_n4qF1n5o46BNzbUtAvQNtFyMyjLz5k _ljz2akwp7its4qei7lza8t4ka5gytpe WSj47GPcA9fU0jTcp5gTX8XVuAL4cYXBbV/MgQoyzK/FT0JGcngYOZTFto+/Uda2ODrOezOp/g5mctUV... v=verifydomain MS=ms53269477 MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDO+4k3ZDsSzs0PniZHxjgNus7nSWJAPE+EqXNE/zRh... adobe-sign-verification=90e8beaf328f6442f4891aece62e2c66 v=msv1 t=4F8C6374-CE65-4367-8B16-23A3B1893BF2 jxGtZKWj/NQFjzHCqtGUOMQTCCwkrd6IWd0qnCoSArSsp6mn+xMtRxubsoxd/RLFQvIiqLwlAruLJdum... atlassian-domain-verification=ySfgSes59QpnOJBhPojaSEYzbUsQb4NRQmPhZSwZutxLS8K7oY... sprout-social-ce75edba-9143-4a99-842e-ed2b16ab6c4d |
| CAA | Lookup not available with standard resolver |
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
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.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
A+Redirect ChainNo redirects — direct accessPASS
https://seattle.gov
62 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://seattle.gov | 200 | 62 ms | HTTP/1.1 | Microsoft-IIS/10.0 |
A+Domain Intelligenceseattle.gov — via get.gov, 25 years, 8 months old, hosted on AWSPASS
50 days
September 2, 2026
313 days
Issued by Amazon
25 years, 8 months
Registered December 7, 2000
Not enabled
Protects against DNS spoofing
AWS
ASN AS16509
13.249.228.101
get.gov
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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