given its size in terms of length and diameter, and also the typical fin on the warhead seen in DF ballistic missiles. It resemble the missile in this illustration, significantly larger and heavier than the CJ cruise missiles, which is why only one can be fitted under the belly when H-6N/K can carry six CJ-10. It's so heavy that the H-6N is said to take off without full fuel, which is why they have the refueling probe.

The DF series is in name only, it doesn't associate with ballistic missile. For example, in the 70th national day parade, the CJ-100 cruise missile shown up as DF-100, I guess missiles deployed by the second artillery are called DF, while missiles deployed by the AF are called CJ, and the naval version is another series. Likewise, if DF-21 is deployed by the AF, it possible to be called CJ-21, but it doesn't mean it becomes a cruise missile because it's named as CJ.

This is what CJ-100 or DF-100 cruise missile looks like, it's a scramjet supersonic cruise missile, it is smaller and like the CJ-10, air intake can be seen on it.

In the 70th national day parade, the H-6N didn't fly with the CJ-100, they flew with YJ-62 and CJ-10, or the improved version of CJ-10 called CJ-10A.