Does zillow.com allow OAI-SearchBot? robots.txt as of 2026-09-11
On 2026-09-11 the robots.txt of zillow.com resolved 19 AI crawler tokens: 16 allowed for / and 3 disallowed for /.
| Domain | zillow.com |
|---|---|
| AI crawler tokens resolved | 19 |
| Allowed for / | 16 |
| Disallowed for / | 3 |
| robots.txt | robots.txt present, 10524 bytes |
| Checks that ran | edge, llms, optout, render, robots, signals, structured, timing |
| robots.txt read (tier A) | 2026-09-11 |
| Full check (tier B) | 2026-09-11 |
| Last verified |
On this domain the robots.txt only check (tier A) last ran on 2026-09-11 and the full check (tier B) last ran on 2026-09-11. The full check adds the home page, the labelled edge probes, llms.txt, the headers and the structured data; the robots.txt check is the one that runs weekly for every seeded domain.
One question per crawler
- GPTBot
- ClaudeBot
- PerplexityBot
- OAI-SearchBot
- CCBot
- Bytespider
- Googlebot
- ChatGPT-User
- Google-Extended
Does zillow.com allow GPTBot? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow GPTBot
User-agent: GPTBot Allow: /
User-agent: GPTBot Disallow: /
The GPTBot guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow ClaudeBot? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow ClaudeBot
User-agent: ClaudeBot Allow: /
User-agent: ClaudeBot Disallow: /
The ClaudeBot guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow PerplexityBot? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow PerplexityBot
User-agent: PerplexityBot Allow: /
User-agent: PerplexityBot Disallow: /
The PerplexityBot guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow OAI-SearchBot? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow OAI-SearchBot
User-agent: OAI-SearchBot Allow: /
User-agent: OAI-SearchBot Disallow: /
The OAI-SearchBot guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow CCBot? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow CCBot
User-agent: CCBot Allow: /
User-agent: CCBot Disallow: /
The CCBot guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow Bytespider? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow Bytespider
User-agent: Bytespider Allow: /
User-agent: Bytespider Disallow: /
The Bytespider guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow Googlebot? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow Googlebot
User-agent: Googlebot Allow: /
User-agent: Googlebot Disallow: /
The Googlebot guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow ChatGPT-User? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow ChatGPT-User
User-agent: ChatGPT-User Allow: /
User-agent: ChatGPT-User Disallow: /
The ChatGPT-User guide: identity, purpose, documented verification and the vendor sources.
Does zillow.com allow Google-Extended? robots.txt as of 2026-09-11
allowed for /
robots.txt has a User-agent: * group with no rule matching / , so / is allowed
Observed 2026-09-11, first observed 2026-09-11, last change recorded 2026-09-11.
Allow or disallow Google-Extended
User-agent: Google-Extended Allow: /
User-agent: Google-Extended Disallow: /
The Google-Extended guide: identity, purpose, documented verification and the vendor sources.
Every crawler token in the registry
| Crawler | Vendor | Observation | Evidence | Observed |
|---|---|---|---|---|
| GPTBot | OpenAI | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| ClaudeBot | Anthropic | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| PerplexityBot | Perplexity | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| OAI-SearchBot | OpenAI | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| CCBot | Common Crawl Foundation | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Bytespider | ByteDance | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Googlebot | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 | |
| ChatGPT-User | OpenAI | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Claude-User | Anthropic | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Claude-SearchBot | Anthropic | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Perplexity-User | Perplexity | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| anthropic-ai | Anthropic | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Bingbot | Microsoft | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Applebot | Apple | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Amazonbot | Amazon | disallowed for / | robots.txt line 301 in the User-agent: Amazonbot group: "Disallow: /" (longest match wins) | 2026-09-11 |
| meta-externalagent | Meta | disallowed for / | robots.txt line 301 in the User-agent: meta-externalagent group: "Disallow: /" (longest match wins) | 2026-09-11 |
| DuckAssistBot | DuckDuckGo | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
| Applebot-Extended | Apple | disallowed for / | robots.txt line 301 in the User-agent: Applebot-Extended group: "Disallow: /" (longest match wins) | 2026-09-11 |
| Google-Extended | allowed for / | robots.txt has a User-agent: * group with no rule matching / , so / is allowed | 2026-09-11 |
What else the robots.txt says
| agents-summary | AI crawler rules: 16 allowed, 3 disallowed 19 crawler tokens resolved against https://zillow.com/robots.txt (HTTP 200, 10524 bytes) at 2026-09-11T16:42:02Z |
|---|---|
| crawl-delay:amazonbot | crawl delay 1 declared robots.txt line 302: "Crawl-delay: 1" |
| crawl-delay:applebot-extended | crawl delay 1 declared robots.txt line 302: "Crawl-delay: 1" |
| crawl-delay:meta-externalagent | crawl delay 1 declared robots.txt line 302: "Crawl-delay: 1" |
| file | robots.txt present, 10524 bytes GET https://zillow.com/robots.txt at 2026-09-11T16:42:02Z returned HTTP 200, 10524 bytes, content type text/plain, 4 user agent group(s) |
| sitemap-declared | 15 sitemap(s) declared in robots.txt line 311: "Sitemap: https://mortgageapi.zillow.com/sitemap.xml"; line 313: "Sitemap: https://www.zillow.com/xml/indexes/us/static.xml.gz"; line 315: "Sitemap: https://www.zillow.com/xml/indexes/us/hdp/for-sale-by-agent.xml.gz" |
The other checks
edge
| agent:bytespider | responds differently when the request carries the token Bytespider baseline GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) returned HTTP 200; the same request with the User Agent "BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/Bytespider" returned HTTP 403, 5776 bytes, body contains "captcha", observed 2026-09-11T16:42:02Z probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/Bytespider Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
|---|---|
| agent:ccbot | responds differently when the request carries the token CCBot baseline GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) returned HTTP 200; the same request with the User Agent "BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/CCBot" returned HTTP 403, 5776 bytes, body contains "captcha", observed 2026-09-11T16:42:02Z probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/CCBot Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
| agent:claudebot | responds differently when the request carries the token ClaudeBot baseline GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) returned HTTP 200; the same request with the User Agent "BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/ClaudeBot" returned HTTP 403, 5776 bytes, body contains "captcha", observed 2026-09-11T16:42:02Z probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/ClaudeBot Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
| agent:gptbot | responds differently when the request carries the token GPTBot baseline GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) returned HTTP 200; the same request with the User Agent "BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/GPTBot" returned HTTP 403, 5776 bytes, body contains "captcha", observed 2026-09-11T16:42:02Z probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/GPTBot Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
| agent:oai-searchbot | responds differently when the request carries the token OAI-SearchBot baseline GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) returned HTTP 200; the same request with the User Agent "BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/OAI-SearchBot" returned HTTP 403, 5776 bytes, body contains "captcha", observed 2026-09-11T16:42:02Z probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/OAI-SearchBot Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
| agent:perplexitybot | responds differently when the request carries the token PerplexityBot baseline GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) returned HTTP 200; the same request with the User Agent "BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/PerplexityBot" returned HTTP 403, 5776 bytes, body contains "captcha", observed 2026-09-11T16:42:02Z probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) ua-probe/PerplexityBot Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
| baseline | home page answered HTTP 200 to our own User Agent GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) at 2026-09-11T16:42:02Z: HTTP 200, 470258 bytes probe User Agent: BikooshBot/1.0 (+https://bikoosh.com/bot) Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out. |
llms
| llms-full.txt | llms-full.txt not present (HTTP 404) GET https://zillow.com/llms-full.txt at 2026-09-11T16:42:02Z returned HTTP 404 |
|---|---|
| llms.txt | llms.txt not present (HTTP 404) GET https://zillow.com/llms.txt at 2026-09-11T16:42:02Z returned HTTP 404 |
optout
| signal | no opt out signal published TXT _bikoosh-aeo.zillow.com carried no opt out and GET https://zillow.com/.well-known/bikoosh-aeo-optout published none either (it answered HTTP 404) at 2026-09-11T16:42:03Z |
|---|
render
| main-content | main content is present in the raw HTML visible text of the raw HTML 8518 characters versus 3121 characters after rendering https://www.zillow.com/ in headless Chromium at 2026-09-11T16:42:02Z: 272.9 percent, threshold 20 percent |
|---|
signals
| canonical | canonical link: https://www.zillow.com/ link rel=canonical in the HTML of https://www.zillow.com/ at 2026-09-11T16:42:02Z: "https://www.zillow.com/" |
|---|---|
| noai | no noai declaration neither the meta tags nor the X-Robots-Tag header of https://www.zillow.com/ carried noai at 2026-09-11T16:42:02Z |
| noimageai | no noimageai declaration neither the meta tags nor the X-Robots-Tag header of https://www.zillow.com/ carried noimageai at 2026-09-11T16:42:02Z |
| robots-meta | robots meta tag present: ROBOTS=ALL in the HTML of https://www.zillow.com/ at 2026-09-11T16:42:02Z: "ROBOTS=ALL" |
| sitemap | declared sitemap answered HTTP 200 HEAD https://mortgageapi.zillow.com/sitemap.xml at 2026-09-11T16:42:02Z returned HTTP 200, content type application/xml |
| tdm-reservation | no tdm-reservation header no tdm-reservation header on https://www.zillow.com/ at 2026-09-11T16:42:02Z |
| x-robots-tag | no X-Robots-Tag header response headers of https://www.zillow.com/ at 2026-09-11T16:42:02Z: no X-Robots-Tag header present |
structured
| json-ld | no JSON-LD in the home page HTML no script type=application/ld+json in https://www.zillow.com/ at 2026-09-11T16:42:02Z |
|---|
timing
| page-bytes | home page HTML 250 to 500 KB GET https://www.zillow.com/ at 2026-09-11T16:42:02Z transferred 470258 bytes of HTML, content type text/html; charset=utf-8 (the value is banded, the exact byte count is here) |
|---|---|
| response-ms | home page answered in 500 to 1000 ms GET https://www.zillow.com/ as BikooshBot/1.0 (+https://bikoosh.com/bot) at 2026-09-11T16:42:02Z: HTTP 200 in 671 ms (the value is banded so that ordinary network jitter is not reported as a change) |
History
Every robots.txt version we have observed for zillow.com.
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Limits: 8 checks and 5 different domains per address per hour; a repeat of the same domain inside 7 days is answered from what we already hold.
Limitation: this test appends a labelled marker to our own honest User Agent, it never impersonates another agent. Rules keyed to an exact User Agent string, or to a vendor's IP ranges, are invisible to this method and are neither confirmed nor ruled out.
AEO Watch is an independent, factual monitor. It is not affiliated with, endorsed by or speaking for any crawler vendor. Every statement is an observation with the date it was made and the raw evidence behind it: a robots.txt line, an HTTP status code, a header. There are no scores, no grades and no verdicts here, and nothing on this page is advice. A site opts out at any time and the opt out is honoured automatically and permanently.