DNS Spy
Connectivity: 100%
The following nameservers are available and responding correctly for DNS queries for your domain yahoo.com.
| Nameserver | IP address(es) | SOA serial |
|---|---|---|
| ns1.yahoo.com. |
68.180.131.16
2001:4998:130::1001 |
2020083103 |
| ns2.yahoo.com. |
68.142.255.16
2001:4998:140::1002 |
2020083103 |
| ns3.yahoo.com. |
27.123.42.42
2406:8600:f03f:1f8::1003 |
2020083103 |
| ns4.yahoo.com. | 98.138.11.157 | 2020083103 |
| ns5.yahoo.com. |
202.165.97.53
2406:2000:ff60::53 |
2020083103 |
Good news, no warnings or errors were found.
We could not find any recommendations at this time.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- All nameservers reply with the same SOA serial number.
- The nameserver IPs are distributed across multiple subnets.
- All nameservers are online.
- Nameservers are available over IPv4.
- Nameservers are available over IPv6.
Performance: 64%
We tested each nameserver and measured the following response times.
| Nameserver | IP address(es) | Response time |
|---|---|---|
| ns1.yahoo.com. |
68.180.131.16
2001:4998:130::1001 |
3ms
3ms |
| ns2.yahoo.com. |
68.142.255.16
2001:4998:140::1002 |
31ms
27ms |
| ns3.yahoo.com. |
27.123.42.42
2406:8600:f03f:1f8::1003 |
175ms
427ms |
| ns4.yahoo.com. | 98.138.11.157 | 135ms |
| ns5.yahoo.com. |
202.165.97.53
2406:2000:ff60::53 |
263ms
255ms |
We detected the following errors or warnings about your DNS configuration. These caused your DNS rating to be lowered. Resolving these will grant a higher DNS Spy rating for your domain.
- Nameserver ns3.yahoo.com. (27.123.42.42) replied, but took too long (175ms). This will severely impact performance.
- Nameserver ns3.yahoo.com. (2406:8600:f03f:1f8::1003) replied, but took too long (427ms). This will severely impact performance.
- Nameserver ns5.yahoo.com. (202.165.97.53) replied, but took too long (263ms). This will severely impact performance.
- Nameserver ns5.yahoo.com. (2406:2000:ff60::53) replied, but took too long (255ms). This will severely impact performance.
We detected some possible recommendations for you to consider. No penalties were given for these, but resolving them can give you a higher DNS score.
- Nameserver ns4.yahoo.com. (98.138.11.157) replied reasonably fast (< 150ms), but you should aim for < 50ms response times.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- Nameserver ns1.yahoo.com. (68.180.131.16) replied quickly (< 50ms).
- Nameserver ns1.yahoo.com. (2001:4998:130::1001) replied in a reasonable time.
- Nameserver ns2.yahoo.com. (68.142.255.16) replied quickly (< 50ms).
- Nameserver ns2.yahoo.com. (2001:4998:140::1002) replied in a reasonable time.
Resilience & Security: 88%
These are the locations and providers of your nameservers.
| Nameserver | Location | ISP |
|---|---|---|
| ns1.yahoo.com. |
IPv4: US
IPv6: US |
AS10310 - YAHOO-1, US
AS10880 - YAHOO-AN2, US |
| ns2.yahoo.com. |
IPv4: US
IPv6: US |
AS7280 - YAHOO-FC, US
AS7280 - YAHOO-FC, US |
| ns3.yahoo.com. |
IPv4: HK
IPv6: IN |
AS10310 - YAHOO-1, US
AS10310 - YAHOO-1, US |
| ns4.yahoo.com. | IPv4: US | AS36646 - YAHOO-NE1, US |
| ns5.yahoo.com. |
IPv4: US
IPv6: TW |
AS10880 - YAHOO-AN2, US
AS10880 - YAHOO-AN2, US |
We detected the following errors or warnings about your DNS configuration. These caused your DNS rating to be lowered. Resolving these will grant a higher DNS Spy rating for your domain.
- No DNSSEC records found. Consider enabling DNSSEC, as it provides a way to validate DNS responses for data integrity.
We could not find any recommendations at this time.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- You have more than 1 nameserver.
- The IPv4 nameservers are distributed among multiple providers.
- The IPv4 nameservers are distributed across multiple locations.
- The IPv6 nameservers are distributed among multiple providers.
- The IPv6 nameservers are distributed across multiple locations.
- CAA records found.
- You are using glue records, this will speed up the initial DNS requests.
DNS records: 95%
Our scans detected the following publicly available DNS records.
| Record | TTL | Value | |
|---|---|---|---|
| A | yahoo.com | 1800s |
74.6.143.25 74.6.143.26 74.6.231.20 74.6.231.21 98.137.11.163 98.137.11.164 |
| AAAA | yahoo.com | 1800s |
2001:4998:124:1507::f000 2001:4998:124:1507::f001 2001:4998:24:120d::1:0 2001:4998:24:120d::1:1 2001:4998:44:3507::8000 2001:4998:44:3507::8001 |
| CAA | yahoo.com | 1800s |
0 iodef "mailto:[email protected]" 0 issue "digicert.com" 0 issue "globalsign.com" |
| MX | yahoo.com | 1800s |
1 mta5.am0.yahoodns.net. 1 mta6.am0.yahoodns.net. 1 mta7.am0.yahoodns.net. |
| NS | yahoo.com | 172800s |
ns1.yahoo.com. ns2.yahoo.com. ns3.yahoo.com. ns4.yahoo.com. ns5.yahoo.com. |
| SOA | yahoo.com | 1800s | ns1.yahoo.com. hostmaster.yahoo-inc.com. 2020083103 3600 300 1814400 600 |
| TXT | yahoo.com | 1800s |
"edb3bff2c0d64622a9b2250438277a59" "facebook-domain-verification=gysqrcd69g0ej34f4jfn0huivkym1p" "v=spf1 redirect=_spf.mail.yahoo.com" |
| TXT | _dmarc.yahoo.com | 1800s | "v=DMARC1; p=reject; pct=100; rua=mailto:[email protected];" |
| SRV | _sipfederationtls._tcp.yahoo.com | 7200s | 10 0 5061 lcsap.msg.yahoo.com. |
| SRV | _sips._tcp.yahoo.com | 7200s |
10 10 5061 uc-vcs-e1-us.corp.gq1.yahoo.com. 10 10 5061 uc-vcs-e1-us.corp.ne1.yahoo.com. 10 10 5061 uc-vcs-e2-us.corp.gq1.yahoo.com. 10 10 5061 uc-vcs-e2-us.corp.ne1.yahoo.com. 10 10 5061 uc-vcs-e3-us.corp.gq1.yahoo.com. 10 10 5061 uc-vcs-e3-us.corp.ne1.yahoo.com. 10 10 5061 uc-vcs-e4-us.corp.gq1.yahoo.com. 10 10 5061 uc-vcs-e4-us.corp.ne1.yahoo.com. |
| CNAME | admin.yahoo.com | 5m | admin.my.lga1.b.yahoo.com. |
| CNAME | ads.yahoo.com | 5m | ds-geoycpi-uno.gycpi.b.yahoodns.net. |
| CNAME | adserver.yahoo.com | 1800s | global1.adserver.gysm.yahoodns.net. |
| CNAME | alerts.yahoo.com | 1800s | www.yahoo.com. |
| CNAME | analytics.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | beta.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | blog.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | calendar.yahoo.com | 5m | edge.gycpi.b.yahoodns.net. |
| CNAME | chat.yahoo.com | 1800s | msgrcc1.sea.msg.ne1.yahoo.com. |
| CNAME | devel.yahoo.com | 1800s | devel.corp.yahoo.com. |
| A | dns.yahoo.com | 1800s | 68.142.196.63 |
| CNAME | download.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | exchange.yahoo.com | 1800s | exchange.corp.yahoo.com. |
| CNAME | forum.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | gateway.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | help.yahoo.com | 1800s | edge.gycpi.b.yahoodns.net. |
| CNAME | home.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | http.yahoo.com | 1800s | add1.dir.scd.yahoo.com. |
| CNAME | id.yahoo.com | 5m | atsv2-fp-shed.wg1.b.yahoo.com. |
| CNAME | images.yahoo.com | 5m | rc.yahoo.com. |
| CNAME | info.yahoo.com | 600s | ds-geoycpi-uno.gycpi.b.yahoodns.net. |
| CNAME | internet.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | ipv4.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | local.yahoo.com | 5m | ds-global3.l7.search.ystg1.b.yahoo.com. |
| CNAME | mail.yahoo.com | 5m | edge.gycpi.b.yahoodns.net. |
| CNAME | mail2.yahoo.com | 1800s | mail1.yahoo.com. |
| CNAME | mail3.yahoo.com | 1800s | mail1.yahoo.com. |
| CNAME | mobile.yahoo.com | 1800s | media-router1.prod.media.yahoo.com. |
| CNAME | mx.yahoo.com | 5m | rc.yahoo.com. |
| CNAME | new.yahoo.com | 5m | rc.yahoo.com. |
| CNAME | news.yahoo.com | 1m | new-news.g06.yahoodns.net. |
| A | ns1.yahoo.com | 1209600s | 68.180.131.16 |
| AAAA | ns1.yahoo.com | 24h | 2001:4998:130::1001 |
| A | ns2.yahoo.com | 1209600s | 68.142.255.16 |
| AAAA | ns2.yahoo.com | 24h | 2001:4998:140::1002 |
| A | ns3.yahoo.com | 1800s | 27.123.42.42 |
| AAAA | ns3.yahoo.com | 1800s | 2406:8600:f03f:1f8::1003 |
| A | ns4.yahoo.com | 1209600s | 98.138.11.157 |
| A | ns5.yahoo.com | 24h | 202.165.97.53 |
| AAAA | ns5.yahoo.com | 24h | 2406:2000:ff60::53 |
| A | ns6.yahoo.com | 172800s | 121.101.144.139 |
| AAAA | ns6.yahoo.com | 1800s | 2406:2000:108:4::1006 |
| A | ns7.yahoo.com | 172800s | 68.142.226.82 |
| A | ns8.yahoo.com | 172800s | 202.165.104.22 |
| A | ns9.yahoo.com | 172800s | 202.160.176.146 |
| CNAME | office.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | ops.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | safe.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | secure.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | server.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | shop.yahoo.com | 1800s | rc.yahoo.com. |
| CNAME | smtp.yahoo.com | 1800s | smarthost.yahoo.com. |
| CNAME | vpn.yahoo.com | 1800s | ciscovpn-ex.corp.yahoo.com. |
| CNAME | www.yahoo.com | 1m | new-fp-shed.wg1.b.yahoo.com. |
We detected the following errors or warnings about your DNS configuration. These caused your DNS rating to be lowered. Resolving these will grant a higher DNS Spy rating for your domain.
- Consider giving the MX record for "yahoo.com" a longer TTL, as those don't change often (1h+).
We could not find any recommendations at this time.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- The root DNS records points to multiple IPs using Round Robin.
- Multiple MX records found.
- MX records with different priorities found (main + fall-back mailservers).
- The MX records points to multiple mailservers.
- The NS records have a long TTL (1h+).
- Your SOA serial number follows the best practice YYYYMMDDxx format.
- SPF records have been found.
- SPF records are set up restrictively.
- DMARC records have been found.
- DMARC records are set up restrictively.
- Found a root (apex) DNS record.
- Found a www DNS record.
- Found an IPv6 root DNS record.
- The active nameservers match the NS records.
- The DNS records appear to be RFC compliant.
Have a look at other public DNS scans.